Joan of Ponthieu, b: -










	^{Edward_I of England}^{b.1239 Westminster, England d.1307 Burgh by Sands, England}



			^{Joan of Ponthieu}^{b. d.}






			^{8th Earl of Fife Duncan Macduff}^{b.1288 Fife, Scotland d.1353 Kildrummy, Scotland}





				^{Ralph de Monthermer}^{b.1270 d.1325}

			^{Mary de Monthermer}^{b.1297 d.1371}				^{Edward_I of England}^{b.1239 Westminster, England d.1307 Burgh by Sands, England}

				^{Joan Plantagenet}^{b.1272 `Akko, Hazafon, Israel d.1307 Clare, Suffolk, England}			^{Eleanor of Castile}^{b.1241 Burgos, Spain d.1290 Harby, England}






			^{Robert de Welle}^{b.1276 d.1320}



							^{Richard de Clare}^{b.1222 d.1262 Waltham, Kent, England}

				^{Thomas de Clare}^{b.1245 Tunbridge Wells, England d.1287 Connaught, Ireland}			^{Maud (Matilda) de Lacy}^{b.1222 Lincoln, England d.1287 Lincoln, England}

			^{Maud de Clare}^{b.1276 Gloucester, England d.1326 Hay-on-Wye, Wales}				^{Maurice Fitzmaurice FitzGerald}^{b.1238 Wexford, Ireland d.1286 Ross, Clare, Ireland}

				^{Juliana Fitzmaurice FitzGerald}^{b.1263 Dublin, Ireland d.1300 Connaught, Ireland}			^{Maud de Prendergast}^{b.1242 Ireland d.1273 Ireland}






			^{Gerald FitzMaurice}^{b.1150 Windsor, England d.1202 Kildare, Ireland}



	^{Maurice FitzGerald}^{b.1190 Clane, Kildare, Ireland d.1257 Monaster, Ireland}






			^{Carlton Hugo Byrd}^{b.1010 Normandy, France d.1057 England}



	^Hugo Byrd^{b.1030 Normandy, France d. England}

				^{Roger Dombue}^{b.1020 France d. France}

			^{Werberger Dombue}^{b.1047 France d. England}