Öljaitü,Öljaitü also known as Mohammad-e Khodabande (24 March 1282 – 16 December 1316), was the eighth Ilkhanid dynasty ruler from 1304 to 1316 in Tabriz, Iran. His name means 'blessed' in the Mongolian language.
He was the son of the Ilkhan ruler Arghun, brother and successor of Mahmud Ghazan (5th successor of Genghis Khan), and great-grandson of the Ilkhanate founder Hulagu.
Early life
Öljaitü was born as the son of Arghun and his third wife, Keraite Christian Uruk Khatun on 24 March 1282 during his father's viceroyalty in Khorasan. He was given the name Khar-banda (Mule driver) at birth, raised as Buddhist and later baptised in 1291, receiving the name Nikolya (Nicholas) after Pope Nicholas IV. However, according Tarikh-i Uljaytu (History of Oljeitu), Öljeitu was at first known as "Öljei Buqa", and then "Temüder", and finally "Kharbanda". Various c. Same source also mentions that it rained when he was born, and the delighted Mongols called him by the Mongolian name Öljeitu (Өлзийт), meaning auspicious. He was later converted to Sunni Islam along with his brother Ghazan. Like his brother, he changed his first name to the Islamic name Muhammad.
He participated in battles involving Ghazan's fight against Baydu. After his brother Ghazan's accession to throne, he was appointed as viceroy of Khorasan. Despite being appointed heir of Ghazan since 1299, after hearing news of his death he sought to eliminate potential rivals to throne. First such act was taken against Prince Alafrang, son of Gaykhatu. He was killed by an emissary of Öljaitü on 30 May 1304. Another powerful emir, Horqudaq was likewise captured and executed.
Reign
He arrived in the Ujan plain on 9 July 1304 and was crowned on 19 July 1304. Rashid al-Din wrote that he adopted the name Oljeitu following Yuan emperor Öljeitu Temür enthroned in Dadu. His full regnal title was Ghiyath al-Din Muhammad Khudabanda Öljaitü Sultan. Upon accession, he made several appointments, such Qutluqshah to the post of commander-in-chief of Ilkhanate army, Rashid al-Din and Sa'd al-Din Savaji as his viziers on 22 July 1304. Another appointment was Asil al-Din, son of Nasir al-Din Tusi as his father's successor to head Maragheh observatory. Another political decision was revoking Kerman from Qutluqkhanid Qutb al-Din Shah Jahan on 21 April 1304. Öljaitü appointed his father-in-law and uncle Irinjin as viceroy of Anatolia on 27 June 1305.
He received ambassadors from the Yuan dynasty (19 September 1305), Chagatai Khanate (in persons of Chapar, son of Kaidu and Duwa, son of Baraq) and Golden Horde (8 December 1305) in the same year, establishing an intra-Mongol peace. His reign also saw a wave of migration from Central Asia during 1306. Certain Borjigid princes, such as Mingqan Ke'un (grandson of Ariq Böke and grandfather of future Arpa Ke'un), Sarban (son of Kaidu), Temür (a descendant of Jochi Qasar) arrived in Khorasan with 30.000 or 50.000 followers.
He undertook an expedition to Herat against the Kartid ruler Fakhr al-Din in 1306, but succeeded only briefly; his emir Danishmend was killed during the ambush. He started his second military campaign in June 1307 towards Gilan. It was a success thanks to combines forces of emirs like Sutai, Esen Qutluq, Irinjin, Sevinch, Chupan, Toghan and Mu'min. Despite initial success, his commander-in-chief Qutluqshah was defeated and killed during the campaign, which paved way for Chupan to rise in ranks. Following this, he ordered another campaign against Kartids, this time commanded by the late emir Danishmend's son Bujai. Bujai was successful after a siege from 5 February to 24 June 1306, finally capturing the citadel. A corps of Frankish mangonel specialists is known to have accompanied the Ilkhanid army in this conquest.
Another important event of 1307 was the completion of the Jami al-Tawarikh by Rashid al-Din on 14 April 1307. Later in 1307, a revolt broke in Kurdistan under the leadership of certain Musa, who claimed to be the Mahdi. The uprising was swiftly defeated. Another religious revolt, this time by 10.000 strong Christians, broke out in Irbil. Despite Mar Yahballaha's best efforts to avert the impending doom, the citadel was at last taken after a siege by Ilkhanate troops and Kurdish tribesmen on 1 July 1310, and all the defenders were massacred, including many of the Assyrian inhabitants of the lower town.