Justanids جستانیان
791–11th-century
Capital	Rudbar
Common languages	Persian Deylami
Religion	Zoroastrianism (791–805) ZaydiIslam (805–11th-century)
Government	Monarchy
King
• 791–805	Justan I(first)
• 972–1004	Khusrau Shah(last)
Historical era	Middle Ages
• Established	791
• Ismaili conquest	11th-century
Preceded by Succeeded by Daylamites Nizari Ismaili state

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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
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TheJustanids orJostanids (Persian:جستانیان) were anIranianZaydiShia dynasty that ruled a part ofDaylam (the mountainous district ofGilan^[1]) from 791 to the late 11th century.^[2]

The Justanids appear as kings ofDaylam at the end of the 8th century. Their centre was in the Rudbar ofAlamut, running into the valley of the Shahrood. Two centuries later, this had become the main centre of the historical Nizari Ismailis orAssassins (Hashshashin), as they are known in the west. They appear in Islamic history as part of whatVladimir Minorsky has called "theIranian Intermezzo".^[3] This refers to a period in which indigenous Daylamite andKurdish principalities took power in northwest Persia after two to three centuries of Arab rule. The Daylamite upsurge eventually culminated in theBuyid dynasty.

After Marzuban ibn Justan converted toIslam in 805, the ancient family of Justans became connected to the Zaydi Alids of the Daylam region. The Justanids adopted theZaydi form of Shi'ism. In the 10th century, they were eclipsed by the Daylamite dynasty ofSallarids in Tarom (modern Iranian province ofZanjan). Nevertheless, the Justanids were tied by marriage with the Sallarids and preserved their seat of Rudbar in the highlands of Daylam. They also became allies with theBuyids. In the 11th century, they may have recognized the suzerainty of theGhaznavids. Later, they recognized the suzerainty of theSeljuqs, but, shortly after, they fade from history.

• Justan I (791–805)
• Marzuban of Daylam (805–855)
• Justan II (855–856)
• Vahsudan of Daylam (856–865)
• Khurshid of Daylam (865)
• Justan III (865–919)
• Ali of Daylam (919)
• Khusrau Firuz (919)
• Siyahchashm (919–928)
• Justan IV (928–947)
• Manadhar (947–972)
• Khusrau Shah (972–1004)

• Donohue, John J. (2003).The Buwayhid Dynasty in Iraq 334 H./945 to 403 H./1012: Shaping Institutions for the Future. Leiden and Boston: Brill.ISBN 90-04-12860-3.
• Madelung, W. (1975)."The Minor Dynasties of Northern Iran". InFrye, Richard N. (ed.).The Cambridge History of Iran. Vol. 4: From the Arab Invasion to the Saljuqs. Cambridge:Cambridge University Press. pp. 198–249.ISBN 0-521-20093-8.
• Madelung, W. (1992).Religious and ethnic movements in medieval Islam.ISBN 0860783103. Retrieved13 February 2014.
• Clifford Edmund Bosworth, The New Islamic Dynasties: A Chronological and Genealogical Manual, Columbia University, 1996.
• Minorsky, Vladimir, Studies in Caucasian History. New York: Taylor's Foreign Press, 1953.
• Pezeshk, Manouchehr (2009)."JOSTANIDS".Encyclopaedia Iranica, Vol. XV, Fasc. 1. pp. 44–46.

• Justanids
• History of Gilan
• History of Zanjan province
• History of Qazvin province
• 8th century in Asia
• 9th century in Asia
• 10th century in Asia
• 791 establishments
• Dynasties in Persia and Iran
• History of Talysh

• Articles with short description
• Short description matches Wikidata
• Articles containing Persian-language text
• CS1: long volume value