William III de Ferrers, b: 1200


			^{William I de Ferrers}^{b.1136 Ferrers, England d.1190 Acre, Palestine}

		^{William II de Ferrers}^{b.1162 Ferrers, England d.1247}	^{Sibyl de Braose}^{b.1150 Bramber, Sussex, England d.1227}

	^{William III de Ferrers}^{b.1200 Derbyshire, England d.1254 Evington, England}		^{Hugh Kevelioc}^{b.1147 Kevelioc, Wales d.1181 Leek, England}

^{William IV de Ferrers}^{b.1240 Groby, England d.1287}		^{Agnes de Meschines}^{b.1174 Tutbury, England d.1247}	^{Bertrada de Montfort}^{b.1155 Cheshire, England d.1189 Evreux, Eure, France}

^{Robert de Ferrers}^{b.1239 Derby, England d.1278}			^{Saher IV de Quincy}^{b.1155 Winchester, England d.1219 Damietta, Acre, Palestine}

^{Agnes de Ferrers}^{b.1244 Derby, England d.1281}		^{Roger de Quincy}^{b.1204 Winchester, England d.1264}	^{Margaret de Beaumont}^{b.1154 Leicester, England d.1234}

	^{Margaret de Quincy}^{b.1218 Winchester, England d.1284}		^{Alan de Galloway}^{b.1186 Galloway, Scotland d.1234 Dundrennan Ab, Scotland}

		^{Helen (Elena) of Galloway}^{b.1208 Carrick, Scotland d.1245}	^{Helen de L'Isle}^{b.1174 Galloway, Scotland d.1212}