4. William DE BELASIS (Ralph DE BELASYSE , Rowland DE BELASYSE , John ).
William de Belasis, by charter (undated) confirmed the town of Belasis to his son Robert and his descendants. Belasis no longer exists as a town but was north east of Stockton-on-Tees.
He had the following children.
+ 5 M i Robert BELASIS.
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