|Ahmad Sanjar's tomb|
|Reign||1118 – 1153|
|Issue||Princess Mah-i Mulk
Princess Amir Siti Khatun
Princess Gouhar Khatun
|Laqab: Muizz ad-Din (shortly), Adud ad-Dawlah
Given name: Ahmad
Turkic nickname: Sanjar
|House||House of Seljuq|
|Died||8 May 1157|
Ahmad Sanjar (Turkish: Ahmed Sencer, Persian: احمد سنجر; full name: Muizz ad-Dunya wa ad-Din Adud ad-Dawlah Abul-Harith Ahmad Sanjar ibn Malik-Shah) (b. 1085 – d. 8 May 1157) was the Sultan of the Seljuq Empire from 1118 to 1153. He was initially the sultan of Khorasan until he gained the rest of the territory upon the death of Muhammad I. Bosworth notes Sanjar is a Turkic name, denoting "he who pierces", "thrusts".
He was a son of Malik Shah I and participated in wars of succession against his three brothers and an uncle, namely Mahmud I, Barkiyaruq, Malik Shah II and Muhammad I. In 1096, he was given the province of Khorasan to govern under his brother Muhammad I. Over the next several years Ahmed Sanjar became the ruler of most of Persia with his capital at Nishapur. A number of rulers revolted against him and continued the split of the Great Seljuq Empire that the dynastic wars had started. In 1102, he repulsed an invasion from Kashgaria, killing Jibrail Arslan Khan near Termez. In 1107, he invaded the domains of the Ghurid ruler Izz al-Din Husayn and captured him, but later released him in return for tribute.
Sanjar undertook a campaign to eliminate the Assassins of Alamut, and successfully drove them from a number of their strongholds. However, an anecdote indicates that en route to their stronghold at Alamut, Sanjar woke up one day to find a dagger beside him, pinning a note from Hassan Sabbah stating that he (Hassan) would like peace. Sanjar, shocked by this event, sent envoys to Hassan and they both agreed to stay out of each other's way.
Garshasp II, who had been imprisoned by Mahmud II, fled to the court of Ahmad, where he requested protection from him (Garshasp's wife was the sister of Ahmad). Garshasp urged Ahmad to invade the domains of Mahmud in Central Persia, and gave him information on how to march to Central Persia, and the ways to combat Mahmud. Ahmad accepted and advanced with an army to the west in 1119, where he together with five kings defeated Mahmud at Saveh. The kings who aided Ahmad during the battle was Garshasp himself, the Emir of Sistan and the Khwarazm-Shah, including two other unnamed kings. After being victorious, Ahmad then restored the domains of Garshasp II. Ahmad then marched as far as Baghdad, where he agreed with Mahmud that he should marry one of his daughters, and that he should give up strategic territories in northern Persia.
In 1141, Ahmad, along with Garshasp II, marched to confront the Kara Khitan threat and engaged them near Samarkand at the battle of Qatwan. He suffered an astounding defeat, and Garshasp was killed. Ahmad escaped with only fifteen of his elite horsemen, losing all Seljuq territory east of the Syr Darya (Jaxartes).
Oghuz Turks from Khuttal and Tukharistan captured Ahmed Sanjar in 1153 and held him prisoner until 1156. While he was incarcerated, these same Oghuz Turks sacked Nishapur, killing the famous Shafi'i jurist, Muhammad ibn Yahya. Sanjar died in 1157 and was buried at Merv. His tomb was destroyed by the Mongols in 1221, during their invasion of the Khwarezmian Empire.
Ahmed Sanjar married Turkan Khatun (died 1156) and he had two daughters with her - wives of his nephew Mahmud II. After her death Sanjar married Rusudan, daughter of Demetrius I of Georgia, widow of sultan Masud Temirek. He had no children with her.
- "SANJAR, Aḥmad b. Malekšāh" Encyclopædia Iranica
- Grousset, René (1970) The Empire of the Steppes Rutgers University Press, New Brunswick, New Jersey, USA, p. 159, ISBN 0-8135-0627-1
- Franzius, Enno (1969) History of the Order of Assassins Funk and Wagnalls, New York, p. 59, OCLC 23676
- Lewis, Bernard (1968) The Assassins: A Radical Sect in Islam Basic Books, New York, p. 30, OCLC 436364
- Bosworth 1968, p. 120.
- Bosworth 1983, pp. 328-329.
- Ibn al-Athir as cited by Zarncke, Friedrich (1879) Der Priester Johannes S. Heizel, Leipzig, p. 856-857 OCLC 7619779
- Liao Shih (the official history of the Khitan Dynasty) cited by Wittfogel, Karl A. and Feng Chia-Sheng (1949) History of Chinese Society: Liao, 907-1125 American Philosophical Society, Philadelphia, p. 639 OCLC 9811810
- Sinor, Denis (1990). p. 368 The Cambridge History of Early Inner Asia. Cambridge: Cambridge University Press. ISBN 0-521-24304-1.
- ʻIzz al-Dīn Ibn al-Athīr, Years 541-589/1146-1193: The Age of Nur Al-Din and Saladin, transl. D.S. Richards, (Ashgate Publishing, 2007), 59.
- Frank Griffel, Al- Ghazali's Philosophical Theology, (Oxford University Press, 2009), 76.
- Saunders, John Joseph (1971). The History of the Mongol Conquests. University of Pennsylvania Press. p. 60.
- Bosworth, C. E. (1968). "The Political and Dynastic History of the Iranian World (A.D. 1000–1217)". In Frye, R. N. The Cambridge History of Iran, Volume 5: The Saljuq and Mongol periods. Cambridge: Cambridge University Press. pp. 1–202. ISBN 0-521-06936-X.
- Bosworth, C. Edmund (1983). "ABŪ KĀLĪJĀR GARŠĀSP (II)". Encyclopaedia Iranica, Vol. I, Fasc. 3. London et al.: C. Edmund Bosworth. pp. 328–329.
|Sultan of the Seljuq Empire
Conquered by the Khwarazmshahs