Mongol campaign against the Nizaris
The Mongol campaign against the Nizaris of the Alamut period (the Assassins) began in 1253 after the Mongol conquest of the Khwarazmian Empire of Iran by the Mongol Empire and a series of Nizari–Mongol conflicts. The campaign was ordered by the Great Khan Möngke and was led by his brother, Hülegü. The campaign against the Nizaris and later the Abbasid Caliphate was intended to establish a new khanate in the region—the Ilkhanate.

Hülegü's campaign began with attacks on strongholds in Quhistan and Qumis amidst intensified internal dissensions among Nizari leaders under Imam Ala al-Din Muhammad whose policy was fighting against the Mongols. His successor Rukn al-Din Khurshah began a long series of negotiations in face of the implacable Mongol advance. In 1256, the Imam capitulated while besieged in Maymun-Diz and ordered his followers to do likewise according to his agreement with Hülegü. Despite being difficult to capture, Alamut ceased hostilities too and was dismantled. The Nizari state was thus disestablished, although several individual forts, notably Lambsar, Gerdkuh, and those in Syria continued to resist. Möngke Khan later ordered a general massacre of all Nizaris, including Khurshah and his family.

Many of the surviving Nizaris scattered throughout Western, Central, and South Asia. Little is known about them afterward, but their communities maintain some sort of independence in their heartland of Daylam and their Imamate reappear later in Anjudan.
Q6563843
Assassins
Concept
Q431177
Mongol conquest of the Khwarazmian Empire
Concept
Q12557
Mongol Empire
LOC
Q7521
Möngke
PER
Q177320
Hülegü
PER
Q369560
Abbasid Caliphate
EVE
Q178084
Ilkhanate
LOC
Q403910
Ala al-Din Muhammad
PER
Q404123
Rukn al-Din Khurshah
PER
Q5907750
Maymun-Diz
Concept
Q4706020
Alamut
LOC
Q6481581
Lambsar
LOC
Q2088795
Gerdkuh
LOC
Q1157591
Daylam
Concept
Q551374
Anjudan
LOC
Q92987578
Mongol campaign against the Nizaris
Concept
1253-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1253
DATE
1256-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1256
DATE
country
country
start time
commanded by
participant
sibling
sibling