_Fastre I of OISY ___
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                       _Fastre II of OISY ___|
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                      |                      |_Ade of UNKNOWN _____
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 _Walter of OISY _____|
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|                     |_Richlide of UNKNOWN _|
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|--Nicholas of OISY 
|  (1130 - 1170)
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|_Ida of MORTAGNE ____|
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