Maurice FitzJohn FitzGerald Irish noble (1240–1261) Parents John FitzGerald, 1st Baron Desmond Margery fitz Thomas Children Sir Richard fitz Maurice Thomas FitzGerald, 2nd Baron Desmond Siblings Sir Gilbert fitz John Philip fitz John Sir John fitz John, 1st Knight of Glin Olyvia fitz John Sir Maurice Buidhe fitz John, 1st Knight of Kerry Thomas fitz John Partners Mathilda de Barry