Sangahyando (Q."Throng-cleaver") was the younger brother of Angamaite and the second son of Castamaite the Corsair (the grandson of Castamir the Usurper). A Corsair Lord, he was born in Umbar in T.A. 1555, but his family was originally from Pelargir, and his Dúnadan ways remained partially rooted in Gondorian culture. He and his brother were the two most powerful figures in Umbar's rich oligarchy, and they were both exceptional Sea-captains. Sangahyando's exploits in the Bay of Belfalas and along the coasts to the south brought him great riches and enabled him to erect a huge castle (Barad Valasanga) on Umbar's Ship Island (Q. "Tol Cirya"). His keep dominated the northern quarters of the city, just as Angamaite's did in the southern districts.