The Ilkhanate or Il-khanate, also known as the Ilkhanids (), and known to the Mongols as Hülegü Ulus (), was a Mongol khanate established from the southwestern sector of the Mongol Empire. The Ilkhanid realm was officially known as land of Iran or simply Iran. It was established after Hulagu Khan, the son of Tolui and grandson of Genghis Khan, inherited the Southwest Asian part of the Mongol Empire after his brother Möngke Khan died in 1259.
The Ilkhanate's core territory lies in what is now part of the countries of Iran, Azerbaijan, and Turkey. At its greatest extent, the Ilkhanate also included parts of modern Iraq, Syria, Armenia, Georgia, Afghanistan, Turkmenistan, Pakistan, part of modern Dagestan, and part of modern Tajikistan. Later Ilkhanate rulers, beginning with Ghazan in 1295, converted to Islam. In the 1330s, the Ilkhanate was ravaged by the Black Death. The last ilkhan, Abu Sa'id Bahadur Khan, died in 1335, after which the Ilkhanate disintegrated.
The Ilkhanid rulers, although of non-Iranian origin, tried to advertise their authority by tying themselves to the Iranian past, and they recruited historians in order to present the Mongols as heirs to the Sasanian Empire (224–651) of pre-Islamic Iran.
Definition
According to the historian Rashid-al-Din Hamadani, Kublai Khan granted his brother, Hulagu (Hülegü), the title of Ilkhan after Hulagu's defeat of Ariq Böke, another brother. The term ilkhan here means "khan of the tribe, khan of the ulus", and this lesser khanship refers to the initial deference to Möngke Khan and his successors as Great Khans of the Mongol empire. The title "Ilkhan", carried by the descendants of Hulagu and, later, other Borjigin princes in Persia, does not appear in the sources until after 1260.
History
Origin
When Muhammad II of Khwarazm ordered a contingent of merchants, dispatched by the Mongols, to be killed, Genghis Khan declared war on the Anushtegin dynasty in 1219. The Mongols overran the empire, occupying the major cities and population centers between 1219 and 1221. Iran was ravaged by the Mongol detachment under Jebe and Subutai, who left the area in ruin. Transoxiana also came under Mongol control after the invasion.
Muhammad II's son Jalal ad-Din Mingburnu returned to Iran in c. 1224 after fleeing to India. The rival Turkic states, which were all that remained of his father's empire, quickly declared their allegiance to Jalal. He repulsed the first Mongol attempt to take Central Persia. However, Jalal ad-Din was overwhelmed and crushed by Chormaqan's army sent by the Great Khan Ögedei in 1231. During the Mongol expedition, Azerbaijan and the southern Persian dynasties in Fars and Kerman voluntarily submitted to the Mongols and agreed to pay tribute.
To the west, Hamadan and the rest of Persia was secured by Chormaqan. The Mongols invaded Armenia and Georgia in 1234 or 1236, completing the conquest of the Kingdom of Georgia in 1238. They began to attack the western parts of Bagratid Armenia, which was under the Seljuks, the following year. By 1237 the Mongol Empire had subjugated most of Persia (including modern-day Azerbaijan), Armenia, Georgia (excluding Abbasid Iraq and Ismaili strongholds), as well as all of Afghanistan and Kashmir. After the battle of Köse Dağ in 1243, the Mongols under Baiju occupied Anatolia, while the Seljuk Sultanate of Rûm and the Empire of Trebizond became vassals of the Mongols.
In 1236 Ögedei commanded Greater Khorasan to be restored and the city of Herat repopulated. The Mongol military governors mostly made camp in the Mughan plain in what is now Azerbaijan. Realizing the danger posed by the Mongols, the rulers of Mosul and the Armenian Kingdom of Cilicia submitted to the Great Khan. Chormaqan divided Transcaucasia into three districts based on the Mongol military hierarchy. In Georgia, the population was temporarily divided into eight tumens. In 1244, Güyük Khan stopped raising of revenue from districts in Persia as well and offered tax exemptions to others. In accordance with a complaint by the governor Arghun Aqa, Möngke Khan prohibited ortogh-merchants (Mongol-contracted Muslim traders) and nobles from abusing relay stations and civilians in 1251. He ordered a new census and decreed that each man in the Mongol-ruled Middle East must pay in proportion to his property. Persia was divided between four districts under Arghun. Möngke Khan granted the Kartids authority over Herat, Jam, Pushang (Fushanj), Ghor, Khaysar, Firuz-Kuh, Gharjistan, Farah, Sistan, Kabul, Tirah, and Afghanistan.