William Hay 
William was born about 1435. William's father was Alexander Hay and his mother is Marjory Fraser. He was an only child. He died before March 30th, 1502.General Notes
SOURCES:"Ancestors/Descendants of Isabel Bigod", http;//www.geneastar.org.
They had a son named Gilbert.
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Children
Gilbert Hay
Gilbert was born about 1455. He died on September 9th, 1513 in Killed in the Battle of Flodden, Northumberland, England.