Created Baron Bonville and Knight of the Garter in 1449. He took the side of the Yorkists in the Wars of the Roses. He was later beheaded by order of Margaret, wife of Henry the Sixth, this was shortly after the Yorkists were defeated at St Albans in 1461 and he was taken prisoner there.
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The manor of Trelawny passed from the families of Bodrugan, Champernowne, Polglass, and Herle, to [this] Lord Bonville.
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Of Chewton Mendip, Somerset; aged 5 years at his father's death and 21 at the death of his mother. Aged 35 years 24 December 1425. Cousin and heir of John Herle of Cornwall Sheriff of Devon Summoned to parliament from 10 Mar 1448/9 as Lord Bonville of Cheston/Chuton, 28 Hen. VI; K.G. Member of Parliament for Somerset & Devonshire. 1st Lord Bonville.
Named together with Isabella Kirkeby in the Inq. taken on the death of their natural son John
On the Yorkist side in Battle of Northampton despite earlier loyalty to Henry VI.