The Ildegizids, Eldiguzids or Ildenizids, also known as Atabegs of Azerbaijan (اتابکان آذربایجان Atabakan-e Āzarbayjan) were an Atabegate of the Seljuk Empire, and a Sunni Muslim Turkic dynasty (started by Eldiguz of Kipchak origin), which controlled most of northwestern Persia, eastern Transcaucasia, including Arran, most of Iranian Azerbaijan, and Jibal. At their maximum extent, the territory under their control, roughly corresponds to most of north-western Iran, most of the regions of modern Azerbaijan and smaller portions in modern Armenia (southern part), Turkey (northeastern part) and Iraq (eastern part). Down to the death in war 1194 of Toghril b. Arslan, last of the Great Seljuq rulers of Iraq and Persia, the Ildenizids ruled as theoretical subordinates of the Sultans, acknowledging this dependence on their coins almost down to the end of the Seljuqs. Thereafter, they were in effect an independent dynasty, until the westward expansion of the Mongols and the Khwarazm-Shahs weakened and then brought the line to its close.

Atabeg (literally means "fatherly lord" in Turkic) was the title conferred upon the Turkic officers who served as guardians of minor Seljuq rulers. In the political circumstances of the time, Atabegs were not only tutors and vice-regents of their princes, but also de facto rulers. At the height of Eldiguzid power, their territory stretched from Isfahan in the south to the borders of Kingdom of Georgia and Shirvan in the north. However, closer to the end of their reign amidst continuous conflicts with the Kingdom of Georgia, the Eldiguzid territory shrank to include only Azerbaijan and eastern Transcaucasia.

The historical significance of the Atabeg of Azerbaijan lies in their firm control over north-western Persia during the later Seljuq period and also their role in Transcaucasia as champions of Islam against the Bagratids of Georgia.

In 1136, Sultan Ghiyath ad-Din Mas'ud (c.1134–1152) appointed Shams ad-Din Eldiguz (c.1135/36–1175) to be an atabeg of Arslan-Shah, the juvenile successor of the throne and transferred Azerbaijan to his possession as iqta. Eldegiz chose Barda as his residence, and attracted the local emirs to his camp.

He made himself virtually independent ruler of Azerbaijan by 1146. His marriage with the widow of Sultan Toghrul II (1132–1133; Masud's brother and predecessor) afforded him to intervene in the dynastic strife which erupted upon Mas'ud's death in 1152. He succeeded, in 1160, in deposing Suleiman-Shah and installing his stepson Arslan-Shah (c.1160–1175) as a Sultan. Conferred with the rank of Atabeg, Eldiguz now became a chief protector of the Sultan's authority.

The word Azam (meaning "great" in Arabic) was added to his title and he was also known as "Atabek-e Azam". All of the state's subsequent rulers used to hold this title. During his reign, Eldiguz could subdue a spacious territory between the Caucasus and Persian Gulf. The territory belonging to him stretched from the gate of Tbilisi up to Makran. He had possessed Iranian Azerbaijan, Arran, Shirvan, Jibal, Hamadan, Gilan, Mazandaran, Isfahan and Rey. The Atabegs of Mosul, Kerman and Fars as well as the feudals of Shirvan, Khuzestan, Ahlat, Arzan-ar-Rum and Maragha became his liegemen.

Kingdom of Georgia, whose army was additionally strengthened by the Kipchak mercenaries, became the strongest rival of the Shams al-Din Eldiguz. In 1138, Georgian king Demetrius I, attacked the earthquake-ridden city of Ganja. While leaving the city, his troops carried off the well-known gate of Ganja as their trophy, which up to this date remains on display at the Gelati monastery. From 1161 onwards Georgians began to make plundering raids and outright conquests on Ani, Dvin, Ganja, Nakhchivan and other regions controlled by Atabegs.

Eldiguz formed a coalition with other Seljuqids in the beginning of the 1160s to fight against the Georgians, and in 1163 the allies inflicted a defeat on king George III of Georgia. The Seljuqid rulers were jubilant, and they prepared for a new campaign. However, this time they were forestalled by George III, who marched into Arran at the beginning of 1166, occupied a region extending to faraway cities as Nakhchivan and Beylagan, devastated the land and returned with prisoners and booty. There seemed to be no end to the war between George III and atabeg Eldiguz. But the belligerents were exhausted to such an extent that Eldiguz proposed an armistice. George had no alternative but to make concessions. Eldiguz restored Ani to its former rulers, the Shaddadids, who became his vassals.

In 1173, Atabeg Eldiguz began another campaign against Georgia but he was defeated. Atabeg's troops retreated and Eldiguz died in 1174 in Nakhchivan.

After the death of Shams al-Din Eldiguz, in 1175, the Seljuq Sultan Arslan Shah tried to escape from the yoke of the Grand Atabeg of Azerbaijan but failed, and was poisoned to death by Shams ad-Din's son, the new Grand Atabeg Muhammad Jahan Pahlavan (c.1174–1186). Pahlavan transferred his capital from Nakhchivan to Hamadan in western Iran, and made his younger brother, Qizil Arslan Uthman, the ruler of Azerbaijan. In 1174, Qizil Arslan captured Tabriz, which subsequently became his capital.

Jahan Pahlavan suppressed all rebellious emirs and appointed faithful mamluks to key positions. He apportioned each of them any region or town as Iqta. The twelve years of his rule are considered the most peaceful period of the state's existence. Under his reign the central power was strengthened and no foreign enemy invaded the territory belonging to the Atabegs. Friendly relations with Khwarazm Shahs, the rulers of Central Asia, were founded. All those facts had positive influence on the development of science, handicraft, trade and arts.

After Muhammad Jahan Pahlavan's death his brother Qizil Arslan (c.1186–1191) ascended the throne. He continued his successful struggle against the Seljuq rulers. At the same time the central power began to get weaker as mamluks who had strengthened their power in their allotments did not want to obey the Sultan. Even Shirvanshah Akhsitan I who used to be Atabegs’ liegeman attempted to intervene the interior affairs of the Eldiguzids and opposed Qizil Arslans aspiration to the throne. In the response to this, Qizil Arslan invaded Shirvan in 1191, reached to Derbent and subordinated the whole Shirvan to his authority. In 1191 Toghrul III, the last Seljuq ruler was overthrown by Qizil Arslan. Then, by Khalif’s leave, he proclaimed himself a Sultan.

The same year Qizil Arslan, who had become the sole ruler of the Great Seljuq Empire, was assassinated. The power was divided among his three sons: Abu Bakr, Qutluq Inandj and Amir Mihran. Abu Bakr governed Azerbaijan and Arran, and his brothers were the rulers of Khorasan and several neighboring regions. Soon, these three successors began to fight for the throne. Victorious in power struggle, Abu Bakr "Jahan-pahlavan" (c. 1195–1210) had his elder brother Qutluq Inandj assassinated and forced the younger brother, Amir Mihran, to take refuge at the court of the latter's brother-in-law, Shirvanshah Akhsitan I (c.1160-1196). The Shirvanshah together with Amir Mihran headed for Tbilisi, the capital of Kingdom of Georgia, and appealed for help to Queen Tamar of Georgia, an official protector of Shirvan. Received with great honors at the Georgian court, they were given desired support, and the Georgian army led by Consort David Soslan marched to Shirvan.

The Eldiguzid atabeg Abu Bakr attempted to stem the Georgian advance, but suffered a defeat at the hands of David Soslan at the Battle of Shamkor and lost his capital to a Georgian protégé in 1195. Although Abu Bakr was able to resume his reign a year later, the Eldiguzids were only barely able to contain further Georgian forays. The State's defense capability was stricken. Khorezmshahs' and Georgians’ non-stopping forays aggravated the situation in the country and speeded up its decay.

In 1209, the Georgian army laid waste to Ardabil – according to the Georgian and Armenian annals – as a revenge for the local Muslim ruler's attack on Ani and his massacre of the city's Christian population. In a great final burst, the Georgian army led an army through Nakhchivan and Julfa, to Marand, Tabriz, and Qazvin in northwest Iran, pillaging several settlements on their way.

After the death of Qizil Arslan, the power was divided among Jahan Pahlavan's sons, however, soon they started to fight for the throne. Abu Bakr came to the fortress of Alinja. The fortress, along with all the treasures, was at the disposal of Jahan Pahlavan's other widow, Zahida Khatun. Abu Bakr captures the fortress and the treasury. Qizil Arslan's nephews began to rule independently, and one of the Mamluks of Jahan Pahlavan, Mahmud Anas Oglu,freed Toghrul III from his prison and regains the sultanate throne in May 1192. However, soon after, in 1194, after a long war with the Khwarazm Shahs, Sultan Togrul III was defeated and the existence of the Iraqi Seljuk Sultanate came to an end.

After defeated by Abu Bakr, Amir Amiran Omar went to gain a support from Shirvanshah Akhsitan I and Georgian Tsarina Tamar. In 1194, the united Georgian-Shirvan and Amir Amiran Omar's troops defeated Abu Bakr in the battles of Shamkir and Beylagan. Later, the Georgians trying to capture Ganja, temporarily occupied it, but soon Abu Bakr's troops drove the Georgians out of Ganja. This process was speeded up during the reign of Atabeg Uzbek (c.1210–1225), who was enthroned after Abu Bakr's death. During his reign, the country was attacked by Mongols and Georgians. In that period, Armenian prince Hasan-Jalal Dawla (founder of House of Hasan-Jalalyan cadet branch of Siunia dynasty) (c.1215–1262) began his separatist activities, a fact which shook the fundamentals of the weakened State. In 1225, Khwarazm Shah Jalal-ad-din dethroned the Ildegizid Uzbek Muzaffar al-Din and set himself up in the capital of Tabriz on the 25 of July in 1225.

1. Eldigüz (ca. 1135 or 1136-1174 or 1175)
2. Muhammad Jahan Pahlawan, son of Eldigüz (1174 or 1175–1186)
3. Qizil Arslan, son of Eldigüz (1186–1191)
4. Qutluq Inandj, stepson of Muhammad Jahan Pahlawan (1191)
5. Nusrat al-Din Abu Bakr, son of Muhammad Jahan Pahlawan (1191–1210)
6. Muzaffar al-Din Uzbek, son of Muhammad Jahan Pahlawan (1210–1225)

Eldiguz ?-1175 Atabeg of Azerbaijan R.1136-1175

Muhammad Jahan Pahlavan Atabeg of Azerbaijan R.1175-1186

Qizil Arslan ?-1191 Atabeg of Azerbaijan R.1186-1191

Nusrat al-Din Abu Bakr ?-1210 Atabeg of Azerbaijan R.1191-1210

Muzaffar al-Din Uzbek ?-1225 Atabeg of Azerbaijan R.1210-1225

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Prehistory Stone Age  • Bronze Age  • Iron Age Shulaveri–Shomu culture c.6000–c.4000 BC Chalcolithic culture of Nakhchivan c.4945–c.3800 BC Leyla-Tepe culture c.4350–c.4000 BC Kura–Araxes culture c.3400–c.2000 BC Nakhchivan culture c.3000–c.2000 BC Talish–Mughan culture c.1400–c.700 BC Khojaly–Gadabay culture c.1300–c.700 BC
Antiquity Kingdom of Iškuza c.700 BC–c.590s BC Achaemenid Empire 550 BC–330 BC       • Satrapy of Media c.550 BC – 323 BC Seleucid Empire 312 BC – 63 BC Parthian Empire 247 BC – AD 224 Caucasian Albania c.200 BC – c.AD 800 Roman Empire 27 BC – AD 395
Early Middle Ages Sasanian Empire 224–651       • Satrapy of Albania c.252–636 Khazar Khaganate c.650–969 Rashidun Caliphate 632–661       • Islamic conquest 633–654       • Arran c.650–705 Umayyad Caliphate 661–750       • Arran c.650–705       • Emirate of Arminiya 705–884 Abbasid Caliphate 750–1258       • Emirate of Arminiya 705–884 Shirvanshahs 861–1538 Sajids 889–929 Shaddadids 951–1199 Sallarid dynasty 919–1062
High Middle Ages Seljuk Empire 1037–1194 Khwarazmian Empire 1077–1231 Eldiguzids 1135–1225 Mongol Empire 1206–1368 Ilkhanate 1256–1335 Chobanids 1335–1357 Timurid Empire 1370–1507 Qara Qoyunlu 1374–1468 Aq Qoyunlu 1378–1503
Early modern history Safavid Iran 1501–1736       • Safavid Shirvan 1501–1736       • Safavid Karabakh 1501–1747       • Chokhur-e Sa'd 1502–1736 Ottoman Empire 1299–1922       • Shirvan Eyalet [az] 1578–1607       • Ganja-Qarabagh Eyalet (I) [az] 1588–1606       • Revan Eyalet (I) [az] 1583–1604           • Nakhchivan Sanjak (I) [az] 1583–1604       • Ganja-Qarabagh Eyalet (II) [az] 1725–1735       • Revan Eyalet (II) [az] 1724–1736           • Nakhchivan Sanjak (II) [az] 1724–1736       • Tiflis Eyalet (II) [az] 1723–1735           • Kazak Sanjak (II) [az] 1723–1735 Afsharid Iran 1736–1796       • Division of Afsharid Empire 1747 Khanates of the Caucasus 1604–1844       • Elisu Sultanate 1604–1844       • Kazakh sultanate 1605–1801       • Djaro-Belokani c.1600s–c.1800s       • Shaki Khanate 1743–1819       • Ganja Khanate 1747–1805       • Talysh Khanate 1747–1828       • Nakhichevan Khanate 1747–1828       • Qutqashen Sultanate 1747–1841       • Baku Khanate 1747–1806       • Shamshadil sultanate 1747–1801       • Quba Khanate 1747–1806       • Karabakh Khanate 1748–1822           • Treaty of Kurakchay 1805       • Shirvan Khanate 1748–1820 Zand dynasty 1751–1794 Qajar Iran 1789–1925       • Fourth Russo-Persian War 1804–1813           • Treaty of Gulistan 1813       • Fifth Russo-Persian War 1826–1828           • Treaty of Turkmenchay 1828 Russian Empire 1721–1917       • Second Russo-Persian War 1722–1723       • Caucasus Viceroyalty 1801–1917           • Baku Governorate 1846–1920           • Erivan Governorate 1849–1917           • Zakatal okrug 1859–1918           • Elizavetpol Governorate 1867–1920       • Special Transcaucasian Committee 1917
Modern history Transcaucasian Commissariat 1917–1918       • March Days 1918 Transcaucasian Democratic Federative Republic 1918 Baku Commune 1918 Centrocaspian Dictatorship 1918 Republic of Aras 1918–1919 Mughan Soviet Republic 1919 Azerbaijan Democratic Republic 1918 - 1920       • Armenian–Azerbaijani War 1918–1920           • Battle of Baku 1918       • Red Army invasion of Azerbaijan 1920 Azerbaijan Socialist Soviet Republic 1920–1922       • Treaty of Kars 1921 Soviet Union 1922–1991       • Transcaucasian SFSR 1922–1936           • Azerbaijan SSR 1922–1936       • Azerbaijan SSR 1936–1991           • World War II 1941–1945           • Black January 1990       • Republic of Azerbaijan 1991
Contemporary history Republic of Azerbaijan 1991–present       • I Nagorno-Karabakh War 1988–1994           • Bishkek Protocol 1994       • II Nagorno-Karabakh War 2020           • Ceasefire Agreement 2020
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Prehistoric period BCE / BC Baradostian culture c. 36,000–18,000 Zarzian culture c. 20,000–10,000 Shulaveri–Shomu culture c. 6000–5000 Zayandeh River Culture c. 6th millennium Dalma culture c. 5th millennium
Ancient period Kura–Araxes culture 3400–2000 Helmand culture/Jiroft culture c. 3300–2200 Proto-Elamite 3200–2700 Lullubi Kingdom/Zamua c. 3100-675 Elam 2700–539 Marhaši c. 2550-2020 Oxus Civilization c. 2400–1700 Akkadian Empire 2400–2150 Kassites c. 1500–1155 Avestan period c. 1500–500 Neo-Assyrian Empire 911–609 Urartu 860–590 Mannaea 850–616 Zikirti 750-521 Saparda 720-670
Imperial period Median Empire 678–550 BC Scythian Kingdom 652–625 BC Anshanite Kingdom 635 BC–550 BC Neo-Babylonian Empire 626 BC–539 BC Sogdia c. 6th century BC–11th century AD Achaemenid Empire 550 BC–330 BC Kingdom of Armenia 331 BC–428 AD Atropatene c. 323 BC–226 AD Kingdom of Cappadocia 320s BC–17 AD Seleucid Empire 312 BC–63 BC Kingdom of Pontus 281 BC–62 BC Fratarakas 3rd-century BC–132 BC Parthian Empire 247 BC–224 AD Elymais 147 BC–224 AD Characene 141 BC–222 AD Kings of Persis 132 BC–224 AD Indo-Parthian Kingdom 19 AD–224/5 Paratarajas 125–300 Sasanian Empire 224–651 Zarmihrids 6th century–785 Qarinvandids 550s–11th century
Medieval period CE / AD Rashidun Caliphate 632-661 Umayyad Caliphate 661–750 Abbasid Caliphate 750–1258 Dabuyids 642–760 Bavandids 651–1349 Masmughans of Damavand 651–760 Baduspanids 665–1598 Justanids 791 – 11th century Alid dynasties 864 – 14th century Tahirid dynasty 821–873 Samanid Empire 819–999 Saffarid dynasty 861–1003 Ghurid dynasty pre-879 – 1215 Sajid dynasty 889–929 Sallarid dynasty 919–1062 Ziyarid dynasty 930–1090 Ilyasids 932–968 Buyid dynasty 934–1062 Rawadid dynasty 955–1070 Hasanwayhids 959–1095 Ghaznavid dynasty 977–1186 Annazids 990/1–1117 Kakuyids 1008–1141 Nasrid dynasty 1029–1236 Shabankara 1030–1355 Seljuk Empire 1037–1194 Khwarazmian dynasty 1077–1231 Eldiguzids 1135–1225 Atabegs of Yazd 1141–1319 Salghurids 1148–1282 Hazaraspids 1155–1424 Pishkinid dynasty 1155–1231 Khorshidi dynasty 1184-1597 Qutlugh-Khanids 1223-1306 Mihrabanids 1236–1537 Kurt dynasty 1244–1396 Ilkhanate Empire 1256–1335 Chobanid dynasty 1335–1357 Muzaffarid dynasty 1335–1393 Jalayirid Sultanate 1337–1376 Sarbadars 1337–1376 Injuids 1335–1357 Afrasiyab dynasty 1349–1504 Mar'ashis 1359–1596 Timurid Empire 1370–1507 Kar-Kiya dynasty 1370s–1592 Qara Qoyunlu 1406–1468 Aq Qoyunlu 1468–1508
Early modern period Safavid Iran 1501–1736 (Hotak dynasty) 1722–1729 Afsharid Iran 1736–1796 Zand dynasty 1751–1794
Modern period Qajar Iran 1789–1925 Pahlavi Iran 1925–1979
Contemporary period Iranian Revolution 1979 Interim Government 1979 Islamic Republic 1979–present
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