O'Malley, Gráinne, noblewoman and sea captain, was the daughter of Eoghan O'Malley, lord of Umhall (now the barony of Murrisk, Co. Mayo), and Margaret, daughter of Conchobhar O'Malley.
Burgh, Richard de (c.1193–1243), magnate, justiciar, and lord of Connacht, was eldest son of William de Burgh (qv) and a daughter of Domnall Mór Ua Briain (qv), and nephew of Hubert de Burgh, justiciar of England.
Butler, James (c. 1305–1338), 1st earl of Ormond, was eldest son of Edmund Butler (qv), 6th chief butler of Ireland, and Joan, daughter of John fitz Thomas FitzGerald (qv), 1st earl of Kildare.
Adomnán (c.624–704), son of Rónán, was 9th abbot of Iona (679–704), biographer of Colum Cille, and saint in the Irish tradition.
Warbeck, Perkin (1474–99), pretender, was son of John Osbeck, controller of the town of Tournai, Flanders, and was the focus of the second – and potentially more serious – Yorkist plot to dethrone Henry VII.