Khwarazmian-Nizari War (1227-30)

War

Tensions between the Khwarazmians and Nizaris escalated due to territorial ambitions and religious differences.

Alamut and Kumis
Upon the killing of Ganja Governor Orhan, Jalaluddin organized an expedition against the Ismailis in 1227, captured and plundered Alamut and KumisOsman Gürbüz, Celâleddin Hârizmşah'ın son Günleri. p.32

Siege of Damghan (1227-1228)
After several months (or, by some accounts, up to a year) the garrison capitulated—reports cite both negotiated safe‑conducts for noncombatants and harsher terms for the fighting men—and the Khwarazmians occupied Damghan in early 1228 ADAleem Karmali, "Reading_Guide_A_Short_History_of_the_Ism"

Capture of Semnan (1228)
The Nizari garrison in Samnan defended the city with castles and walls. The Khwarezm forces besieged the city and the resistance of the local garrison was broken.Aziz Yardımlı, "HARZEMŞAHLAR"

Qazvin and Execution of Alaaddin Muhammad

In 1230, in the Battle of Kazvin between the Khwarezm Shahs and the Ismailis, the Ismaili vizier was taken prisoner.Prof. Dr. Aydın Taneri, Harezmşahlar. s.73 During this battle, the Ismaili vizier was captured by the Khwarazmian forces, imprisoned in Dizmar Castle, and executed four months later.

References

Category:13th-century conflicts
Category:13th century in Asia
Category:Qazvin Province