Founder of the dynasty The founder of the dynasty was Seljuk, a warlord, who belonged to the
Qiniq tribe of
Oghuz Turks. He led his clan to the banks of the
Syr Darya river, near city of
Jend, where they converted to
Islam in 985. Khwarezm, administered by the
Ma'munids, was under the nominal control of the
Samanid Empire. By 999, the Samanids had fallen to the
Kara-Khanid Khanate in
Transoxiana, while the
Ghaznavids occupied the lands south of the
Amu Darya. The Seljuks supported the last Samanid emir against the Kara-Khanids before establishing an independent base.
Expansion of the empire Tughril and Chaghri {{multiple image|perrow=2|total_width=400|caption_align=center The Oghuz Turks (also known as Turkmens at the time) were one of several groups of the Oghuz who made their way to
Iran between about 1020 and 1040. They were led by Seljuk's son, Musa, and Musa's two nephews,
Tughril and Chaghri. They first moved south to
Transoxiana, and then to
Khorasan, initially at the invitation of local rulers, then enmeshed in alliances and conflicts. Contemporary sources place them in
Dehistan/Mishrian,
Gyzylarbat, and
Nisa, as well as
Sarakhs, all in present-day Turkmenistan. Around 1034, Tughril and Chaghri were soundly defeated by the
Oghuz Yabghu Ali Tegin and his allies, forcing them to escape from Transoxiana. Initially, the Seljuks took refuge in
Khwarazm, which served as one of their traditional pastures, but they were also encouraged by the local
Ghaznavid governor,
Harun, who hoped to utilise the Seljuks for his efforts to seize Khorasan from his sovereign. When Harun was assassinated by Ghaznavid agents in 1035, they again had to flee, this time heading south across the
Karakum Desert. First, they made their way to the important city of
Merv, but perhaps due to its strong fortifications, they turned westwards to take refuge in Nisa. Finally, the Seljuks arrived on the edges of Khorasan, the province considered a jewel in the Ghaznavid crown. After moving into Khorasan, the Seljuks under Tughril wrested an empire from the Ghaznavids. Initially, the Seljuks were repulsed by
Mahmud of Ghazni and retired to Khwarazm, but Tughril and Chaghri led them to capture Merv and
Nishapur (1037–1038). Later, they repeatedly raided and traded territory with Mahmud's successor, Mas'ud, across Khorasan and
Balkh. In 1040, at the
Battle of Dandanaqan, the Seljuks decisively defeated
Masʽud I, forcing him to abandon most of his western territories. Afterwards, the Seljuks employed Khorasanians and set up a Persian bureaucracy to administer their new polity with Tughril as its nominal overlord. By 1046,
Al-Qa'im had sent Tughril a diploma recognising Seljuk rule over Khorasan. In 1048–1049, the Seljuks, commanded by
Ibrahim Yinal, uterine brother of Tughril, made their first incursion into the Byzantine frontier region of
Iberia and clashed with a combined Byzantine-Georgian army of 50,000 at the
Battle of Kapetron on 10 September 1048. The devastation in 1051–1052 the Byzantine magnate Eustathios Boilas described the area as "foul and unmanageable... inhabited by snakes, scorpions, and wild beasts". The Arab chronicler
Ibn al-Athir wrote that Ibrahim brought back 100,000 captives and 10,000 camel loads of loot. In 1055, Tughril entered Baghdad and removed the influence of the
Buyid dynasty, under a commission from the Abbasid caliph. Iraq remained under Seljuk control until 1135.
Alp Arslan . Iran, 12th-13th century. Seattle Art Museum. Alp Arslan, the son of Chaghri Beg, expanded significantly upon Tughril's holdings by adding Armenia and Georgia in 1064 and invading the Byzantine Empire in 1068, from which he annexed almost all of Anatolia. Arslan's decisive victory at the
Battle of Manzikert in 1071 effectively neutralized the Byzantine resistance to the Turkish invasion of Anatolia, although the Georgians were able to recover from Alp Arslan's invasion by securing the
theme of Iberia. The Byzantine withdrawal from Anatolia brought Georgia into more direct contact with the Seljuks. In 1073 the Seljuk Amirs of Ganja, Dvin and Dmanisi
invaded Georgia and were defeated by
George II of Georgia, who successfully took the fortress of
Kars. A retaliatory strike by the Seljuk Amir Ahmad defeated the Georgians at
Kvelistsikhe. Alp Arslan authorized his
Turkoman generals to carve their own principalities out of formerly Byzantine Anatolia, as
atabegs loyal to him. Within two years the Turkmens had established control as far as the
Aegean Sea under numerous
beyliks: the
Saltukids in Northeastern Anatolia, the
Shah-Armens and the
Mengujekids in Eastern Anatolia,
Artuqids in Southeastern Anatolia,
Danishmendis in Central Anatolia,
Rum Seljuks (Beylik of
Suleyman, which later moved to Central Anatolia) in Western Anatolia, and the Beylik of
Tzachas of Smyrna in
İzmir (
Smyrna).
Malik Shah I Under
Alp Arslan's successor,
Malik-Shah I, and his two Persian
viziers,
Nizam al-Mulk and
Taj al-Mulk, the Seljuk state expanded in various directions, to the former Iranian border of the days before the Arab invasion, so that it soon bordered
China in the east and the
Byzantines in the west. Malik Shah's brother
Tutush defended Seljuk's interests in
Syria in the
battle of Ain Salm against
Suleiman ibn Qutalmish who had started to carve out an independent state in Anatolia. Nevertheless, despite various attempts to bring the various Turkish warlords in Anatolia under control, they largely maintained their independence. Malik-Shah I was the one who moved the capital from
Ray to
Isfahan. The
iqta military system and the
Nizamiyya of Baghdad were established by Nizam al-Mulk, and the reign of Malik-Shah I was reckoned the golden age of "Great Seljuk". The Abbasid caliph titled him "The Sultan of the East and West" in 1087. Internally, the most prominent development of Malik Shah's rule was the continuous increase in the power of the Nizam al-Mulk. Some contemporary chroniclers refer to the period as
al-dawla al-Nizamiyya, the Nizam's state, while modern scholars have mentioned him as "the real ruler of the Seljuq empire". The 14th century biographer
Taj al-Din al-Subki claimed that Nizam al-Mulk's vizierate was "not just a vizierate, it was above the sultanate". The
Assassins (
Hashshashin) of
Hassan-i-Sabah started to become a force during his era, however, and they assassinated many leading figures in his administration; according to many sources, these victims included Nizam al-Mulk.
Ahmad Sanjar , Iran, 12th century.
Ahmad Sanjar was the son of
Malik Shah I and initially took part in wars of succession against his three brothers and a nephew:
Mahmud I,
Berkyaruq,
Malik Shah II and
Muhammad I Tapar. In 1096, he was tasked to govern the province of
Khorasan by his brother Muhammad I. Over the next several years, Ahmad Sanjar became the ruler of most of
Iran (Persia), and eventually in 1118, the sole ruler of the Great Seljuk Empire, but with a subordinate Sultan in Iraq in the person of
Mahmud II. In 1141, Ahmad marched to eliminate the threat posed by
Kara Khitans and faced them in the vicinity of
Samarkand at the
Battle of Qatwan. He suffered his first defeat in his long career, and as a result lost all Seljuk territory east of the
Syr Darya. Sanjar's as well as the Seljuks' rule collapsed as a consequence of yet another unexpected defeat, this time at the hands of the Seljuks' own tribe, in 1153. It brought chaos to the Empire – a situation later exploited by the victorious Turkmens, whose hordes would overrun Khorasan unopposed, wreaking colossal damage on the province and prestige of Sanjar. The Ghurids then took control of all Khorasan following the death of his successor
Tekish in 1200, as far as
Bastam in the ancient region of Qūmes. The
Tomb of Ahmed Sanjar was destroyed by the
Mongols led by
Tolui, who sacked the city of Merv in 1221, killing 700,000 people according to contemporary sources
during their catastrophic invasion of Khwarazm; however, modern scholarship holds such figures to be exaggerated.
Division of empire When
Malik-Shah I died in 1092, the empire split as his brother and four sons quarrelled over the apportioning of the empire among themselves. At the same time, the son of
Suleiman ibn Qutalmish,
Kilij Arslan I, escaped Malik-Shah I's imprisonment and claimed authority in the
former lands of his father. In
Persia, Malik-Shah I's four-year-old son
Mahmud I was proclaimed sultan but his reign was contested by his three brothers
Berkyaruq in
Iraq, Muhammad I in
Baghdad, and
Ahmad Sanjar in
Khorasan. Additionally, Malik-Shah I's brother
Tutush I made a claim to the throne but was killed in battle against
Berkyaruq in February 1096. Upon his death, his sons
Radwan and
Duqaq inherited
Aleppo and
Damascus respectively and contested with each other as well, further dividing Syria amongst emirs antagonistic towards each other. In 1118, the third son
Ahmad Sanjar took over the empire. His nephew, the son of Muhammad I, did not recognize his claim to the throne, and
Mahmud II proclaimed himself Sultan and established a capital in Baghdad, until 1131 when he was finally officially deposed by Ahmad Sanjar. Elsewhere in nominal Seljuk territory were the
Artuqids in northeastern Syria and northern
Mesopotamia; they controlled
Jerusalem until 1098. The
Dānišmand dynasty founded a state in eastern Anatolia and northern Syria and contested land with the
Sultanate of Rum, and
Kerbogha exercised independence as the
atabeg of
Mosul.
First Crusade (1095–1099) During the
First Crusade, the fractured states of the Seljuks were generally more concerned with consolidating their own territories and gaining control of their neighbours than with cooperating against the
crusaders. The Seljuks easily defeated the
People's Crusade arriving in 1096, but they could not stop the progress of the army of the subsequent
Princes' Crusade (First Crusade), which took important cities such as
Nicaea (
İznik),
Iconium (Konya),
Caesarea Mazaca (
Kayseri), and
Antioch (
Antakya) on its march to
Jerusalem (
Al-Quds). In 1099, the crusaders finally captured the
Holy Land and set up the first
Crusader states. The Seljuks had already lost Jerusalem to the
Fatimids, who had recaptured it in 1098 just before its capture by the crusaders. After pillaging the
County of Edessa, Seljuk commander
Ilghazi made peace with the Crusaders. In 1121 he went north towards Georgia and with supposedly up to 250,000–350,000 troops, including men led by his son-in-law Sadaqah and Sultan Malik of
Ganja, he invaded the
Kingdom of Georgia.
David IV of Georgia gathered 40,000 Georgian warriors, including 5,000
monaspa guards, 15,000
Kipchaks, 300 Alans and 100 French Crusaders to fight against
Ilghazi's vast army. At the
Battle of Didgori on 12 August 1121, the Seljuks were routed, being run down by pursuing Georgian cavalry for several days afterward. The battle helped the Crusader states, which had been under pressure from Ilghazi's armies. The weakening of the main enemy of the Latin principalities also benefitted the Kingdom of Jerusalem under King
Baldwin II.
Second Crusade (1147–1149) During this time conflict with the
Crusader states was also intermittent, and after the First Crusade increasingly independent atabegs would frequently ally with the Crusader states against other atabegs as they vied with each other for territory. At Mosul,
Imad ad-Din Zengi succeeded
Kerbogha as atabeg and successfully began the process of consolidating the atabegs of Syria. In 1144 Zengi captured
Edessa, as the
County of Edessa had allied itself with the
Artuqids against him. This event triggered the launch of the Second Crusade.
Nur ad-Din, one of Zengi's sons who succeeded him as atabeg of
Aleppo, created an alliance in the region to oppose the Second Crusade, which landed in 1147.
Decline of the Seljuk Empire (1176–1194), from
Rayy,
Iran.
Philadelphia Museum of Art.
Ahmad Sanjar fought to contain the revolts by the
Kara-Khanids in
Transoxiana,
Ghurids in
Afghanistan and
Qarluks in modern
Kyrgyzstan, as well as the nomadic invasion of the
Qara-Khitais in the east. The advancing Qara-Khitais first defeated the Eastern Kara-Khanids, then followed up by crushing the Western Kara-Khanids, who were vassals of the Seljuks at
Khujand. The Kara-Khanids turned to their Seljuk overlords for assistance, to which Sanjar responded by personally leading an army against the Qara-Khitai. However, Sanjar's army was decisively defeated by the host of
Yelu Dashi at the
Battle of Qatwan on 9 September 1141. While Sanjar managed to escape with his life, many of his close kin, including his wife, were taken captive in the battle's aftermath. As a result of Sanjar's failure to deal with the encroaching threat from the east, the Seljuk Empire lost all its eastern provinces up to the river
Syr Darya, and vassalage of the Western Kara-Khanids was usurped by the Qara-Khitai, otherwise known as the Western Liao in Chinese historiography.
Conquest by Khwarezm and the Ayyubids In 1153, the Oghuz Turks rebelled and captured Sanjar. He managed to escape after three years but died a year later. The Atabegs, such as the
Zengids and
Artuqids, were only nominally under the Seljuk Sultan, and generally controlled Syria independently. When Sanjar died in 1157, the empire fractured even further and rendered the Atabegs effectively independent. The breakaway states and dynasties included: •
Kerman Seljuk Sultanate; •
Sultanate of Rum (or Anatolian Seljuks). Capital:
Iznik (
Nicaea), later
Konya (Iconium). After the Second Crusade, Nur ad-Din's general
Shirkuh, who had established himself in
Egypt on
Fatimid land, was succeeded by
Saladin. In time, Saladin rebelled against
Nur ad-Din Zangi; upon his death, Saladin married his widow, captured most of Syria and created the
Ayyubid dynasty. On other fronts, the
Kingdom of Georgia began to become a regional power and extended its borders at the expense of the Great Seljuk Empire. The same was true during the revival of the
Armenian Kingdom of Cilicia, under
Leo II of Armenia, in
Anatolia. The Abbasid caliph
al-Nasir also began to reassert the authority of the caliph and allied himself with the Khwarezmshah
Takash. For a brief period,
Toghrul III was the Sultan of all Seljuk lands except for Anatolia. He spent his reign conquering cities, destroying the citadel of
Ray in the process, but was unable to hold any cities long enough to rebuild them. Toghrul III, however, was defeated by
Ala al-Din Tekish, Shah of
Khwarazmian Empire, and the Seljuk Empire finally collapsed in 1194. Of the former Empire, only the
Sultanate of Rum in Anatolia remained. The Khwarazmian Empire took over as the dominant power in the region, but the
Mongol invasion in 1219–1220 soon destroyed it. The Sultanate of Rum, the last remnants of the Seljuks in Anatolia, ended too with the
Mongol invasions of Anatolia through the 1260s, and was divided into small
emirates called "
beyliks". One of these, the
Ottomans, would eventually rise to power and conquer the rest. == Governance ==