William was born in 1240 in Kerdeston, Norfolk, England.1 William's father was Roger de Kerdeston and his mother was <Unknown>. He was an only child. He died at the age of 84 on June 1st, 1324.1
General Notes
Sheriff of Norfolk & Suffolk 1297-8. [Burke's Dormant & Extinct Peerage (1883), p. 305]
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Title: Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne, Sutton Publishing Ltd, 2000 Page: VII:190 Text: c 1324