William de Tracy1095 - 1135 Born approx 1095 Died approx 1135 Details Parents William de Tracy Lived 40 years father Henry I 1068 - 1135 Siblings Brother Robert 1090 - 1147 Sister Matilda Fitzroy 1095 - 1125 Sister Adeliza 1100 - 1130 Sister Aline FitzRoy 1105 - 1141 Sister Constance 1110 - 1150 Sister Gundrada de Dunstanville 1110 - 1160 Sister Matilda FitzRoy 1115 - 1145 Sister Rohese 1115 - 1145 Sister Mabel 1120 - 1160 Sister Emma 1120 - 1160 Brother Gilbert FitzRoy 1130 - 1160 Sister Sibyl of Falaise 1130 - 1160