The most exhaustive, if not the best known, source for the history of Shāh Isma'īl the Ṣafavī, is undoubtedly the Ḥabib-us-Siyar of Khwāndamīr. Though this large and important work has been lithographed, both in Ṭihrān and in Bombay, it is but too little known in Europe, where it has generally been regarded as a mere epitome of the Rauzat-uṣ-Ṣafā; whereas, besides being an original source for much valuable biographical and geographical matter, it contains detailed accounts of many little-known dynasties. Khwāndamīr's work is thus in many respects more interesting than the ponderous universal history of his grandfather. Now, there is a work, of which the British Museum possesses one copy, and the Cambridge University Library a second, which is devoted entirely to the biography of Shāh Isma'īl. Neither MS. bears a title nor gives any author's name, and in no part of the work have I been able to find a clue to the author's identity. MS. L bears the title , which is taken from the Epilogue, and in the very last line after we read which, according to Dr. Rieu, is most probably meant for the transcriber and not the author. The work ends with a short account of the accession of Isma'īl's son Ṭahmāsp, and with prayers for the prosperity and long life of the young prince. This would lead one to fix the completion of the history soon after the accession of Ṭahmāsp Mīrzā in a.h. 930. On the other hand, on fol. 277a of MS. L, we are told, in a momentary digression from the main narrative, that Moḥammad Zamān Mīrzā was drowned in the Ganges in the year 947, on the occasion of Humāyūn's retreat from Bengal.