حبیب السیر 27: Sultan Mas'ud III. bin Ibrahim.

27

His surname, according to Hamdu-lla Mustaufi, was 'Alau-d daula; but according to the account which is written in the Rauzatu-s Safa, it was Jalalu-d daula. All historians agree that Mas'ud reigned for sixteen years after his father, and according to the Tarikh-i Guzida he departed to the world of eternity in the year 508 H. (1114-15 A.D.), and that same history declares that, after the death of Mas'ud, his son Kamalu-d daula Shirzad ascended the throne. But, after the lapse of a year, in 509 H., he was murdered by his own brother, Arslan Shah. Other historians, who have come afterwards, have mentioned Mas'ud without any reference to Arslan Shah: but God knows everything!