William III Sybil 
Agnes William IV (daughter)
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| William III Sybil |
| Agnes William IV (daughter)
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William III de Saye
governor of Rochester Castle & lord of West Greenwich
abt 1209, West Greenwich, Kent England - February 12, 1271, Rochester Castle, Kent England
Sybil Marshall
abt 1220, Pembroke, Pembrokeshire Wales - abt 1255, Pembroke, Pembrokeshire Wales
Married: ?? - ??
Agnes de Saye
abt 1250, Berling, Kent England - 1275, Newtimber, Sussex England
William IV de Saye, knight
November 20, 1253, Berling, Kent England - September 16, 1295, West Greenwich, Kent England
(daughter) de Saye
abt 1255, Suffolk England - August 10, 1280