___________________________________ _Walter FitzOther _________________________________|___________________________________ _Gerald FitzWalter Constable of Pembroke Castle_| | | ___________________________________ | |_Beatrice _________________________________________|___________________________________ _Maurice FitzGerald Lord of Lanstephen_| | | _Tewdwr Mawr ______________________ | | _Rhys K of Deheubarth______________________________|_Gwenllian of Anglessy_____________ | |_Nest of Wales__________________________________| | | _Rhiwallon K of Powys______________ | |_Gwladys of Powys__________________________________|___________________________________ _Gerald FitzMaurice Baron of Offaly_| | | _Roger de MONTGOMERY ______________ | | _Roger de MONTGOMERY 1st E of Arundel & Shrewsbury_|___________________________________ | | _Arnulph de MONTGOMERY _________________________| | | | | _William II TALVAS C of Alcenon____ | | | |_Mabel TALVAS _____________________________________|_Hildeburge _______________________ | |_Alice de MONTGOMERY __________________| | | _Toirrdelbach O'BRIEN K of Ireland_ | | _Muirchertach O'BRIEN K of Ireland_________________|_Derbforgaill of Ossory____________ | |_Lafracoth O'Brien _____________________________| | | _Diarmait of Ossory________________ | |_Dubchoblaig ______________________________________|___________________________________ | |--Maurice FitzGerald Justiciar of Ireland | | ___________________________________ | ___________________________________________________|___________________________________ | ________________________________________________| | | | ___________________________________ | | |___________________________________________________|___________________________________ | _Robert de BERMINGHAM _________________| | | | ___________________________________ | | | ___________________________________________________|___________________________________ | | |________________________________________________| | | | ___________________________________ | | |___________________________________________________|___________________________________ |_Eva de BERMINGHAM _________________| | ___________________________________ | ___________________________________________________|___________________________________ | ________________________________________________| | | | ___________________________________ | | |___________________________________________________|___________________________________ |_______________________________________| | ___________________________________ | ___________________________________________________|___________________________________ |________________________________________________| | ___________________________________ |___________________________________________________|___________________________________
Offaly, Lord of Lea, Justiciar of Ireland 1232-1245, Commissioner of the
Treasury and councillor, 1250.