| William (I) de Percy (ca1030 - 1098) |
Gilbert de Gant ( - ca1095) |
| Emma de Port |
Alice de Montfort |
| Alan (I) de Percy | Emma de Gant |
| b. d. bef Dec 1135 . Witnessed some of Henry I's notifications at Portsmouth, Winchester & Rockingham. |
b. d. . |
| > William (II) de Percy < Walter (II) de Percy |