Robert de Quincy, b: 1227 -






	^{Robert de Quincy}^{b.1227 d.1257}



^{Hawise de Quincy}^{b.1250 d.1295}			^{Iowerth oir Gwyndwn ap Owain}^{b.1130 d.1174 Pennant, Walkes}

		^{Llewelyn ap Iowerth}^{b.1173 Aberffraw Cast, Wales d.1240 Abercromway, Wales}	^{Margaret ferch Madog}^{b.1129 Aberffraw Castle, Wales d.}

	^{Helen ap Llywelyn}^{b.1207 d.1253}		^{John "Lackland" Plantagenet}^{b.1166 Kings Manor Ho, England d.1216 Newark-on-Tre, England}

		^{Joan of England}^{b.1188 London, England d.1237 Abercronway, Wales}	^{Constance de Brittany}^{b.1166 Brittany, France d.1201 Nantes, Poitiers, France}