Sultaniyeh, a royal city founded by Hulagu's descendants
Editorial contextPassing Sultaniyeh, Chardin saw fine public buildings, about 3,000 houses and vast ruins of churches, mosques and towers stretching west. Some said no one knew its founder; others said Arghun Khan, grandson of Hulagu, laid its foundations and his son finished it and named it 'the Royal City'. He adds on the same page that it was later wrecked by Tamerlane and by other Turkish and Tartar princes.
Others on the other side affirm, that the foundations of it were laid when the Sun was in Leo, by the order, and in the Reign of Ergon Can, the Son of Abkei-Can, and Grand-child of Halacou-Can; and that because it could not be finish'd in his days, his Son Jangou-Sultan compleated the work and call'd it Sultania, or the Royal City.
About Mongol Ilkhans (Tartar khans of Persia)
Keep in mind
Chardin gives competing traditions about the founder; he saw the ruins himself.