Gráinne O'Malley[1] (Irish: Gráinne Ní Mháille, pronounced [ˈgˠɾˠaːn̠ʲə n̠ʲiː ˈwaːl̠ʲə]; c. 1530 – c. 1603), also known as Grace O'Malley, was the head of the Ó Máille dynasty in the west of Ireland, and the daughter of Eóghan Dubhdara Ó Máille