He died without surviving male issue on 16 May 1462, according to Cokayne's "The Complete Peerage", or was slain at the Second Battle of St Albans in 1461 according to Rogers, 1877, p. 389. He was buried in North Cadbury parish church, in the chantry founded there "by his ancestors" as he had provided for in his will written 38 years before in 1424. He died seized of 50 manors, mostly in the West-country. His Inquest "post mortem" as a tenant-in-chief of the king dated 1462 refers to him as "William Botreaux, "miles"", i.e. "knight".