List of Assassin strongholds
List of the strongholds or dar al-hijra of the Order of Assassins in Persia and Syria.
Most of the Persian Ismaili castles were in the Alborz mountains, in the regions of Daylaman and Quhistan, as well as in Qumis. Most of the Syrian Ismaili castles were in Jabal Bahra'.
According to Juzjani, before the Mongol invasion the Assassins possessed 70 forts in Quhistan and 35 in Alamut. Overall, they probably had 250 castles.
The Ismaili fortresses in Rudbar of Alamut had been built on rocky heights and were equipped to withstand long sieges; they had storehouses with high capacities and elaborate water supply infrastructure such as cisterns, qanats, and canals.
Syria
The strongholds in Jabal Bahra' were known as the "Castles of the da'wa".| Name | Arabic name / Alternative spellings | Location | Condition | Image | Coordinates | Notes |
| Qal'at Balis | قلعة بالس | on the Aleppo-Baghdad road | Ceded by Alp Arslan al-Akhras to Abu Tahir al-Sa'igh, commanded by Ibrahim al-Ajami. It was soon abandoned. | |||
| Baniyas | قلعة بانياس | Banias, Southern Syria | Given by Toghtekin to Bahram al-Da'i | |||
| Masyaf Castle | قلعة مصياف | Hama | Partially restored | The most famous Syrian Ismaili castle. | ||
| Abu Qubays | قلعة أبو قبيس | Hama | Partially ruined | Purchased from Iftikhar al-Dawla, the Fatimid governor of Jerusalem. | ||
| Qalaat al-Madiq | قلعة المضيق, Qal'at al-Mudiq | Hama | Residential area | Briefly captured by Abu Tahir al-Sa'igh. | ||
| Aleika Castle | قلعة العليقة, Uleyqa | Tartus | A concentric castle | |||
| Al-Qadmus Castle | قلعة القدموس, Al-Qadmous; Kadmus | Tartus | Ruined | Purchased from Muslim forces. | ||
| Al-Kahf Castle | قلعة الكهف | Tartus | Partially ruined | Probably the main residence of Rashid al-Din Sinan. He died in the castle in 1192. Ismailis had purchased the castle from Muslims in 1138. | ||
| Khariba Castle | قلعة الخريبة | Tartus | Captured by local Nizaris in 1136–1137 from the Franks. | |||
| Khawabi Castle | قلعة الخوابي | Tartus | Residential area | Conquered by Baibars in 1273. | ||
| Rusafa Castle | قلعة الرصافة | Hama | Partially ruined | Rebuilt by Sinan. Conquered by Baibars in 1271. | ||
| Qulay'ah Castle | قلعة القليعة | Tartus | ||||
| Sarmin Castle | قلعة سرمين | Idlib | ||||
| Maniqa Castle | قلعة المنيقة | Latakia | Dated back to the Roman era, it was also known as "Malikas" or "Malghanes" during the Crusader rule. | |||
| Shaizar Castle | قلعة شيزر | Hama | In ruins | Briefly occupied by the Assassins |