Title: Ismāʻīlīyūn va Mughūl va Khvājah Naṣīr al-Dīn Ṭūsī
Subjects: Mongols, Ismailites, History
Places: Iran
People: Naṣīr al-Dīn Muḥammad ibn Muḥammad Ṭūsī (1201-1274)