[1] He was a direct descendant of Sharif Kabungsuwan, the first sultan of Maguindanao.
[1][2] He was the son of Sultan Bangkaya with his Maguindanao wife.
[2][3] Dimasangcay also had half brothers, Gugu Sarikula and Buisan, who also sequentially reigned as sultans of Maguindanao after him.
[2][3] Dimasangcay was married to Imbog, a Sulu woman, and they had a daughter named Paguian Goan.
[4] The daughter later married a Basilan chief of Bornean descent, Adasaolan.