Idonea De Clifford, b: 1300 - Appleby, England


			^{Henry De Percy}^{b.1235 Whitby, Yorkshire, England d.1272 Sallay, England}

		^{Henry De Percy}^{b.1273 Petworth, Sussex, England d.1314 Fountains Abbey, England}	^{Eleanor De Warren}^{b.1244 Surrey, England d.1282}

	^{Henry De Percy}^{b.1300 Leconfield, Yorkshire, England d.1351 Warkworth, England}		^{John Fitzalan}^{b.1246 Arundel, Sussex, England d.1272}

		^{Eleanor Fitzalan (Arundel)}^{b.1277 Arundel, Sussex, England d.1328}	^{Isabella De Mortimer}^{b.1248 Wigmore, England d.1274}

^{Maud De Percy}^{b.1335 Warkworth Castle, England d.1378}			^{Roger De Clifford}^{b.1243 Clifford Castle, England d.1282 Menai Strait, Wales}

		^{Robert De Clifford}^{b.1274 Clifford Castle, England d.1314 Bannockburn, Scotland}	^{Isabel Vipount (Veteri-Ponti)}^{b.1254 Ricester, Oxfordshire, England d.1291}

	^{Idonea De Clifford}^{b.1300 Appleby, England d.1365}		^{Thomas De Clare}^{b.1248 Tonbridge, Kent, England d.1287 Thomond, Ireland}

		^{Maud De Clare}^{b.1276 Gloucestershire, England d.1327}	^{Julian Fitzmaurice}^{b.1249 Dublin, Ireland d.1309}