- de Percy
-
Agnes b. 1134, d. 1205Eleanor b. 1325Henry b. 1158, d. 1196Henry Baron Percy b. bt 6 Feb 1300 - 1301, d. bt 17 Feb 1351 - 1352Henry Eighth Baron Percy b. 1228, d. 29 Aug 1272Henry First Lord Percy b. 25 Mar 1273, d. Oct 1314Isabella b. 1330Margaret b. 1318Maud b. c 1335, d. BEF. 18 FEB 1378 79William Seventh Baron Percy b. 1185, d. 1245
- de Perigord
- de Peyferer
- de Peyton
-
John b. c 1230
- de Picot
- de Picquigny
-
Eustace d'Amiens b. c 1060, d. a 1085
- de Pitres
-
Bertha b. c 1130Maud b. 1088Miles Earl of Hereford b. c 1097, d. 24 Dec 1143Roger b. c 1050
- de Plessetis
- de Plessis
-
u b. b 974u b. c 1014
- de Poitiers
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Bohemund III b. c 1140, d. Apr 1201Ebles II b. 876, d. 935Marie Princess of Antioch b. c 1138, d. 27 Aug 1182Philippa b. c 1139
- de Poitou
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Agnes b. c 1020, d. 14 Dec 1077Agnes b. 1052, d. c 1078Clemence b. c 1060, d. a 1129William V b. c 1023