Firishta's History (Gulshan-i Ibrāhīmī) 93.3.3

93.3.3

a measure which he was the more induced to adopt, as the late Ibrahim Koolly Kootb Shah had, upon his death-bed, enjoined his son not to give away Mullika Jehan in marriage without the consent of Moortuza Nizam Shah. Dilawur Khan, the minister and regent of Beejapoor, supposing that the cause of the Princess's detention originated with Moortuza Nizam Shah, marched with the Beejapoor troops to the Ahmudnuggur frontier. On his arrival at the fort of Owsa, Moortuza Nizam Shah, who had long retired from public affairs, judging that some conduct of his ministers had occasioned this invasion, confined Sulabut Khan, and gave his office to Kasim Beg, who by his entreaties prevailed on Dilawur Khan to quit the country. The Beejapoor army then moved towards the dominions of Mahomed Koolly Kootb Shah, who, in order to maintain peace, sent his sister to Ibrahim Adil Shah; and the nuptials were celebrated with great magnificence at Shahdoorg, from whence the King returned to Beejapoor. In the year 996, Moortuza Nizam Shah, long supposed to be deranged, now evinced symptoms of downright madness, and endeavoured to take the life of his son Meeran Hoossein; upon which the minister, Mirza Khan, thought it best to assist the Prince, in confining Moortuza Nizam Shah; to effect this object, he requested the assistance of Dilawur Khan, who marched with his sovereign from Beejapoor; but before he arrived at Ahmudnuggur, Meeran Hoossein had dethroned his father.