Written source · Latin

Sanudo's crusade plan: the Secrets of the Faithful of the Cross

A Venetian merchant-noble's crusade treatise of c. 1321, with a history of the Tartars and advice on using them against Egypt.

Full title Book of the Secrets of the Faithful of the Cross (crusade treatise with geography of the Mongol-controlled trade routes and the Tartars), first edition

Marino Sanudo Torsello; Jacques Bongars, editor

Read the 11 passagesOpen the original book

Marino Sanudo Torsello (c. 1270 to 1343), a Venetian nobleman who travelled widely in the eastern Mediterranean, wrote the Liber secretorum fidelium crucis between 1306 and 1321 and presented it to Pope John XXII. It proposes a trade embargo on Mamluk Egypt, an alliance with the Mongol Ilkhans, and a crusade by sea, and includes a history of the crusades with chapters on the origin, conquests and customs of the Tartars, largely compiled from Carpini and Hayton, plus merchant knowledge of trade routes. The manuscripts carry Pietro Vesconte's maps. The corpus copy is Jacques Bongars's first printed edition in Gesta Dei per Francos, vol. 2 (Hanau 1611), in two scans; quotes come from the stand-alone scan.

How they knew
Part eyewitness
Who “Tartar” means here
The Mongols and their successor states: Chinggis Khan's people, the Ilkhans who ruled Persia and Iraq ('the Tartars who rule Persia and Chaldea'), the Golden Horde under Uzbek in Gazaria and the north, and the Great Khan in Cathay.
Why read it
It shows how a practical Venetian saw the Tartars around 1320: as trading partners controlling the spice road through Tabriz, potential allies against Egypt, and a people whose history was already wrapped in Prester John legend.
Watch out
Most of the Tartar history and customs are copied from Carpini and Hayton, and the book is a piece of crusade advocacy. The Vesconte maps are reduced or absent in this printed edition (note for the maps team).

What it says: 11 passages

CitiesMongolia (Karakorum)c. 1245 (written c. 1321)

A land with no towns except 'Cracurim'

Editorial contextSanudo's chapter headed 'the sordid origin of the Tartars' describes the land 'called Mongal or Tartaria' where the East meets the North: mountainous in parts, mostly gravel and sand, short of water, so that there are no villages or cities 'except one called Cracurim', said to be fairly good, though the land is excellent for raising herds. Cracurim is Karakorum.

The land called Mongal or Tartaria is described as lying in that part where the East joins the North ... and it lacks plenty of water: hence there are no villages or cities there, except one which is called Cracurim, and is said to be fairly good. For raising herds, however, the land is excellent.

Working translation

Original wording

Terra quæ Mongal siue Tartaria dicitur, in ea parte describitur, vbi Oriens Aquiloni coniungitur … & aquarum copiâ caret: vndè nec villæ ibi sunt aut ciuitates, exceptâ vnâ quæ Cracurim vocatur, & satis bona esse dicitur. In alendis tamen pecoribus terra optima est.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols ('Mongal or Tartaria')

Keep in mind

Copied almost word for word from John of Plano Carpini's report of 1247; Sanudo never went to Mongolia.

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Kublai founds in Cathay 'a city greater than Rome'

Editorial contextSumming up the khans, Sanudo says Möngke drowned trying to take an island in the sea of Cathay (a garbled report), and his brother 'Cobila Chaam' held the Tartar empire forty-two years, 'was a Christian', and founded in the kingdom of Cathay a city greater than Rome called 'Iong', where he always lived. This is Kublai's new capital, Dadu or Khanbaliq, now Beijing.

and his brother Kublai Khan succeeded him, who held the empire of the Tartars for 42 years: he was a Christian, and founded in the kingdom of Cathay a city greater than Rome, called Iong, where he stayed continually.

Working translation

Original wording

& successit illi frater Cobila Chaam, qui annis XLII. tenuit imperium Tartarorum: hic Christianus fuit, & fundauit in regno Catay, Româ ciuitatem maiorem, vocatam Iong, vbi continuè immoratus est.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols (Kublai Khan)

Keep in mind

From Hayton's history; Kublai was not a Christian, and Möngke actually died besieging a Chinese fortress.

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Aleppo, Hama and Damascus fall; Acre tears down its towers in fear

Editorial contextIn his year-by-year chronicle Sanudo notes that in 1260 the Tartars broke in violently and took Aleppo, Harim, Hama, Homs and Damascus, killing every Saracen who met them, then entered the kingdom of Jerusalem and took Sidon, but not its sea castle. The people of Acre, afraid of them, cut down their orchards and threw down the orchard towers outside the walls, even carrying off cemetery stones. The Tartars were beaten by the Sultan of Egypt at Ain Jalut (the 'plain of Tiberias').

The next year the Tartars, breaking in violently, took Aleppo, Harim, Hama, Homs and Damascus, killing all the Saracens who came against them. Then they entered the kingdom of Jerusalem and took Sidon, but could by no means take the sea castle. The people of Acre, for fear of them, cut down the orchards outside the city, and threw the orchard towers to the ground, removing even the stones of the cemetery along with the stones of the buildings.

Working translation

Original wording

Tartari autem sequenti anno violenter irrumpentes ceperunt Alapiam, Harenc, Haman, Calamelam, & Damascum: occidentes cunctos factos sibi obuiam Saracenos. Intrant deindè regnum Ierusalem, capiuntq; Sydonem: sed castrum maris nullatenus capere potuerunt. Ptolomenses verò eorum timore præciderunt viridaria extra ciuitatem; & turres viridariorum ad terram proiecerunt, amouentes etiam lapides cimiterii cum lapidibus ædificiorum.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols of Hulagu (the Ilkhanate)

A note on this quote

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The Iron Gate city of Alexander razed by the Tartars

Editorial contextSent west with 10,000 horsemen, the Mongol general Jebe ('Gebesagada') took towns before they knew he was coming, killing the armed men but, Sanudo says, sparing the people and leaving gold untouched. At the Caucasus he reached Alexandreta, built by Alexander, later called the Iron Gate, which blocks the way from deep Asia. The Tartars entered it suddenly and 'overthrew both citizens and place from the foundations'.

and he came to the great mountain Caucasus, where Alexander built Alexandreta, which was afterwards called the Iron Gates. This blocks the passage from deep Asia to the greater. This impregnable city the Tartars, entering the land suddenly, overthrew from its foundations, both citizens and place.

Working translation

Original wording

peruenitque ad magnum montem Caucasum, vbi Alexandretam Alexander ædificauit, quæ postea Portæ ferreæ dicta est. Hæc transitum prohibet de profunda Asia ad maiorem. Hanc autem inexpugnabilem ciuitatem, intrantes subitò terram Tartari, tam ciues quam locum funditus euerterunt.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols under Jebe ('Gebesagada')

Keep in mind

Compiled history; the attribution of Derbent's walls to Alexander is medieval tradition (they are Sasanian).

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Show 7 more passages
Daily lifeMongoliac. 1245 (written c. 1321)

One god, many idols, and the sin of a knife in the fire

Editorial contextSanudo's chapter on 'the customs of the Tartars' says they believe in one God, maker of all, but do not pray to him; they worship idols that give them answers. They are 'too superstitious': it is a sin to stick a knife in the fire, touch fire with a knife, take meat from the cauldron with it, or chop with an axe near the fire, 'for they think the head is thus cut off the fire'. Killing and invading other lands, he adds, they do not count as sin.

The Tartars worship one God, maker of all things, giver of good and of punishments in this world; yet they do not worship him with prayers or praises or in any other way, but idols from which they get answers. ... They are too superstitious: for they think it a sin to stick a knife in the fire, or touch it in any way with a knife, or take meat out of the cauldron with it, or chop with an axe beside the fire: for they think that in this way the head is taken off the fire.

Working translation

Original wording

Tartari, vnum Deum colunt, factorem omnium; bonorum, & pœnarum in hoc mundo datorem: eum tamen orationibus vel laudibus aut aliter non colunt; sed idola à quibus habent responsa. … Superstitiosi sunt nimis: peccatū enim putant cultellum in igne figere, vel quomodocunq; cultello tangere, vel cum eo carnes de caldaria extrahere, vel cū securi incidere iuxta ignē: putant enim sic caput igni auferri.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols

Keep in mind

Condensed from Carpini's report; Sanudo presents it as general knowledge.

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Daily lifeTabrizc. 1306 to 1321

Spices come by the Tartar road through Baghdad and Tabriz

Editorial contextSanudo, a Venetian with merchant experience, argues that the Pope should ban trade with Mamluk Egypt because goods can come instead through the lands of the Tartars. Christian merchants, he says, can travel from the Tartar dominions all the way to India, and many have gone and come back, whereas the Sultan lets no Christian pass; light, precious spices such as cloves, nutmeg and mace already reach the Mediterranean via Baghdad and Tabriz.

from this side, namely the dominion of the Tartars, Christian merchants will be able to direct their steps as far as India, since there are many who have already gone and come back. ... it should be known that from the parts of the Tartars, namely from Baghdad and from Tabriz, for a long time past and at present almost all goods of small weight and great price are carried to the Mediterranean Sea

Working translation

Original wording

ab hac parte scilicet dominii Tartarorum, vsque in Indiam ipsi mercatores Christiani poterunt dirigere gressus suos, cùm multi sint, qui iam iuerunt & redierunt. … sciendum est quod à partibus Tartarorum, scilicet à Baldach & à Thorisio, à magno tempore citra conducta sunt & cōducuntur ad præsens ad Mare Mediterraneum, quasi omnia mercimonia modici ponderis, & magni prætii

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols of the Ilkhanate (Persia and Iraq)

Keep in mind

A policy argument for a trade embargo; his trade information came from Venetian and other merchants.

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Daily lifeMongoliac. 1245 (written c. 1321)

No locks on their wagons, and living on mare's milk

Editorial contextIn the same chapter Sanudo, following Carpini, praises Tartar honesty and endurance: there are no robbers or thieves of anything valuable among them, so the tents and carts where they keep their treasure are never locked; they welcome anyone who comes while they eat, can go a day or two without food and still sing and play, and when heading for lands short of food they take mares and cows along and live on the milk.

Robbers or thieves of valuable things are not found among them: so their dwellings and carts, where they keep their treasures, they do not secure with locks or bars. They honour one another and are friendly among themselves; everyone who approaches while they are eating they receive at the meal ... and when they go to a land where they think there is a shortage of food, they take mares, cows and other animals with them, and live on the milk.

Working translation

Original wording

Prædones vel fures notabilium rerum, inter eos non sunt: ideoq; stationes & currus eorum, vbi thesauros conseruant, seris aut vectibus non firmant. Honorant se mutuò, & sunt ad inuicem familiares; omnem accedentem, dum comedunt, ad conuiuiū recipiunt … & quando ad terram pergunt, vbi putant adesse victualiū inopiam, equas, vaccas & alia animalia secū portant; & de lacte viuunt.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols

Keep in mind

Copied from Carpini, who also stressed their arrogance and cruelty to outsiders.

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Khan Uzbek turns Muslim, with an army counted in tens

Editorial contextSanudo warns the Pope that the Sultan of Egypt, with gifts and treaties, had drawn 'the Emperor of the Tartars named Husbecho, who rules in Gazaria and other northern parts' to accept Islam. Trustworthy people told him Uzbek's cavalry was so vast that, his army being organised in tens, he could take just three of every ten and still field an almost unbelievable host.

the said Sultan so changed and drew the Emperor of the Tartars, named Uzbek, who rules in Gazaria and other northern parts, that he received the law of the faithless Muhammad ... For it is asserted by some trustworthy people that the said Uzbek has so numerous a multitude of horsemen that, taking three out of ten, since he has his army ordered by tens, from the threes alone he puts so large a force in the field that it seems almost incredible.

Working translation

Original wording

prædictus Soldanus Imperatorem Tartarorum, nomine Husbecho, qui in Gazaria, & aliis Septentrionis partibus dominatur, immutauit taliter & attraxit, vt legem receperit perfidi Mahumeti … Nam à nonnullis dignis fide asseritur quod dictus Husbecho, habet equitum multitudinem adeò numerosam, vt subtrahendo tres de decem, cum per decuriones habeat exercitum ordinatum, ex solis ternariis in campo ponit ita militiam copiosam, quod quasi incredibile videatur.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Golden Horde under Uzbek Khan ('Husbecho')

Keep in mind

Uzbek's conversion was his own and not simply the Sultan's doing; the army figure is hearsay.

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Daily lifeSyria1260 to 1303 (written c. 1321)

Why the Tartars could never hold Syria: summer heat and no grass

Editorial contextArguing against landing a crusade in Armenia, Sanudo notes that the Tartars had often overrun almost all of Syria but always had to give it up and let the Sultan retake it. They could not cross the desert into Egypt, and could not stay through the summer because of the great heat and the lack of pasture for their horses and herds. It shows how nomad armies were tied to grass.

And it should be considered that many times the Tartars overran the land and took almost all the districts of Sham and Syria: but because they could not cross the desert by which one passes into Egypt ... And if one wished to say that the Tartars were forced to give up what they had taken, this was because they could not stay in summer on account of the intense heat, and on account of the lack of grazing, which they did not have for pasturing their horses and herds

Working translation

Original wording

Et considerandum est quod multoties Tartari cucurrerunt per terram, & cœperunt quasi omnes contratas de Semo, & de Syria: sed quia non potuerunt transire desertum per quod transitur in Ægyptum … Et si dici vellet quod Tartari compulsi fuerunt relinquere acquisita, hoc fuit, quia non potuerunt in æstate commorari propter intensionem caloris, & propter defectum herbatici, quod non habuerunt pro suis equis pascēdis & gregibus

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols of the Ilkhanate

Keep in mind

A strategic argument, but it matches what modern historians say about Mongol logistics in Syria.

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The nameMongoliabefore 1206 (written c. 1321)

Seven Tartar nations, and the 'water Mongols' named after a river

Editorial contextSanudo lists seven Tartar nations 'of greater excellence': Tartar, Tangoth, Eurath, Ialayr, Sonit, Mengli and Theboth (roughly Tatar, Tangut, Oirat, Jalayir, Sunit, and others). Then, from another source, he says the land of Mongal had four peoples, the second being the Su Mongol or 'water Mongols', who 'call themselves Tartars, from a river of theirs called Tartar'. Chinggis rose from the first people and conquered the rest.

of which the first is called Tartar, the second Tangoth, the third Eurath, the fourth Ialayr, the fifth Sonit, the sixth Mengli, the seventh Theboth. The said land of Mongal also once had four peoples: the first of which was called Iechamongla, that is, great Mongols; the second, Summongal, that is, water Mongols: these call themselves Tartars, from a certain river of theirs which is called Tartar

Working translation

Original wording

quarum prima vocatur Tartar, secunda, Tangoth, tertia Eurath, quarta Ialayr, quinta Sonit, sexta Mengli, septima Theboth. Præfata quoque terra Mongal, quatuor olim habebat populos: quorum primus Iechamongla, id est, magni Mongali vocabatur: Secundus, Summongal, id est, aquatici Mongali: hii se ipsos Tartaros appellant, à quodam suo fluuio qui Tartar dicitur

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols and Tatars

Keep in mind

Stitched from Hayton (the seven nations) and Carpini (the four peoples); the river Tartar is a folk etymology.

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Prester John's son cut to pieces, his daughter wed to Chinggis

Editorial contextSanudo tells how the Tartars, once tributaries of 'David, son of Prester John, king of India', rose against him under Chinggis. Their best weapons were clubs with bows and arrows; most fought on foot, some rode oxen, a few rode asses and colts. David was cut limb from limb with all his family except one daughter, whom Chinggis took as wife. A blend of the Prester John legend with the real defeat of the Kereit ruler Toghrul.

Their best weapons were clubs, with bows and arrows: for the most part they were on foot; a smaller part sat on oxen; the smallest on asses and beasts of burden and colts. So King David, hearing of their coming ... was cut limb from limb with his whole family except his only daughter: which daughter Chinggis Khan took as his wife.

Working translation

Original wording

Potiora eorum arma, fuere claua cum arcubus, & sagittis: pedites in maxima parte erant; pars minor in bobus sedebat; minima asinis & iumentis & pullis equorum. Rex itaque Dauid eorum aduentum audiens … & cum tota familia, exceptâ vnicâ eius filiâ, membratim truncatur: quam quidem filiam, Cyngis Chaam vxorem accepit.

Marino Sanudo Torsello (Liber secretorum fidelium crucis, c. 1321; ed. Bongars, Hanau 1611)

About Mongols under Chinggis Khan; 'David, son of Prester John'

Keep in mind

A legend repeated from older crusade-era books; the Mongols were famously mounted archers, not ox-riding foot soldiers.

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The fine print

How we know

mixed Part firsthand observation, part drawn from other sources.

mixed: Sanudo travelled widely in the eastern Mediterranean and used merchant informants; his account of the Tartars (Ilkhanate, Golden Horde, the spice routes via Tabriz and Baghdad) is compilation plus informant testimony, presented to John XXII in 1321

Research notes
  • Bongars printed from a Paris MS; the maps in the 1611 edition are reduced; manuscript maps by Pietro Vesconte c. 1320 are the primary cartographic witnesses (Vat. Pal. lat. 1362A, BL Add. 27376).
  • MAPS TEAM: Vesconte/Sanudo maps; see also L-type lead for manuscript maps.

Why it matters

Fourteenth-century Venetian strategic geography that treats the Mongol khanates as trade partners and potential allies; the accompanying Vesconte world and regional maps (in the manuscripts, partly engraved by Bongars) are an early cartographic record of 'Tartaria' (note for maps team).

Places named

Levant; Egypt; Persia (Tabriz, Baghdad); Black Sea; Georgia; Armenia; Cumania; India trade routes

Peoples named

Named only as Tartars or Tatars
Mongols and the Mongol empire
Golden Horde and its Tatar successor khanates
Persian, Arab, Ottoman and other Islamic states
Peoples of the Caucasus
Turkic and Central Asian peoples and states
European peoples and powers

Tartars (Ilkhanate, Golden Horde); Mamluks; Armenians; Georgians; Turks; Venetians

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