Margaret de Berkeley Peerage person ID=41773 (b. 1268) Parents Joan de Ferrers Thomas de Berkeley, 1st Baron Berkeley Children Thomas FitzGerald, 3rd Baron Desmond John fitz Thomas Maurice FitzGerald, 1st Earl of Desmond Siblings Maurice de Berkeley, 2nd Baron Berkeley Isabel de Berkeley James Berkeley John de Berkeley Alice Berkeley Thomas de Berkeley Partners Thomas FitzGerald, 2nd Baron Desmond Reynald Russel