36. John BELLASIS (Robert BELASYSE , John BELASYSE , John BELASYSE , William BELASYSE , John BELASISE , John BELASISE , Robert DE BELASISE , Thomas DE BELASISE , Roger DE BELASISE , Rowland BELASISE , William BELASIS , Robert BELASIS , William DE BELASIS , Ralph DE BELASYSE , Rowland DE BELASYSE , John ) died in 1439.

John Bellasis, founded St.Catherine's Chantry in St. Mary, North Bailey, Durham.

John also married Sibilla. Sibilla died in 1439.

37. William BELASYSE (Robert BELASYSE , John BELASYSE , John BELASYSE , William BELASYSE , John BELASISE , John BELASISE , Robert DE BELASISE , Thomas DE BELASISE , Roger DE BELASISE , Rowland BELASISE , William BELASIS , Robert BELASIS , William DE BELASIS , Ralph DE BELASYSE , Rowland DE BELASYSE , John ).

Fought in a battle in 1449

William Belasyse, by his charter dated 1449, settled his lands on his son Thomas and daughter-in-law Margaret.

William married Jonetta TIPPING.