Death of Hulegu Khan and the situation of the Ilkhanate

Timeline

1. 1265Maragha court residence · Iranian PlateauOn 8 February 1265, Ilkhanate founder Hulegu died at his court in northwestern Iran, aged about forty-eight. A grandson of Genghis Khan and sixth son of Tolui, he grew up in the Mongol court, was a Buddhist, and his chief wife Doquz Khatun was a Nestorian Christian. In 1253 Möngke Khan ordered Hulegu to lead a great western expedition, which destroyed the Nizari Ismaili state of Alamut (1256), captured Baghdad and executed Abbasid caliph al-Musta'sim (1258), laying the Ilkhanate's foundations. Following Mongol secret-burial custom, his body was secretly taken to a small island in Lake Urmia, a site still unconfirmed archaeologically.
2. 1265Ilkhanate as a whole · Middle EastAt Hulegu's death the Ilkhanate's territory covered present-day Iran, Iraq, Azerbaijan, Armenia, and part of Turkmenistan, with Maragha as capital. Yet it faced three pressures: first, an unresolved war since 1262 on the northern Caucasian frontier with his cousin Berke Khan (Golden Horde); second, the Mamluk Sultanate in Syria to the southwest, a persistent threat since defeating the Mongols at Ain Jalut in 1260, with Baybars I allying with Berke Khan against the Ilkhanate; third, incomplete integration of the Persian civil bureaucracy, diverse religious communities (Christians, Buddhists, Muslims), and Mongol military nobility. Hulegu's sudden death passed all three challenges to his successor.
3. 1265Maragha · Iranian PlateauDuring his reign Hulegu founded an observatory at Maragha (Maragha Observatory, c. 1259) headed by the Persian astronomer Nasir al-Din al-Tusi, symbolizing his fusion and protection of Islamic-Persian scholarly traditions. The Ilkhanate he established provided a political framework for later Persian-Mongol cultural synthesis, Islamization (finally established under Ghazan Khan in 1295), and the continuation of Iranian administrative traditions. After Hulegu's death his son Abaqa succeeded him, continuing his father's religiously tolerant policies and anti-Mamluk strategy; the Ilkhanate remained broadly stable and entered a phase of development and consolidation. The khanate Hulegu founded continued to dominate West Asian politics for the next half century, until its fall in 1335.