Aveline fitz John -1274 (1235–1274) Parents Isabel Bigod John Fitzgeoffrey Children Richard Óg de Burgh, 2nd Earl of Ulster Egidia de Burgh Siblings Margaret de Lacy Maud de Lacy, Baroness Geneville Joan fitz John Maud FitzJohn, Countess of Warwick Richard fitz John, 1st and last Lord FitzJohn Isabel fitz John Walter de Lacy Sir John fitz John Partners Walter de Burgh, 1st Earl of Ulster