William de Burley

William was John de Burley's eldest son.

Hawise's sister Amice married Sir John Burley KG (d.c.1383), the elder brother of Sir Simon Burley who was b.1336? (ODNB) and ex.1388. John and Amice had Sir Richard KG (d.1387 in Spain, sp ), William (dsp 1388), Roger (issue failed 1445) and Isabel who m. Sir John Hopton, with issue (descendant Thomas H. s. to Burley properties in 1445),

The following is from "Lives of the Speakers of the House of Commons", p. 89:

Sir Simon's brother, John, was also a Knight of the Garter, and besides his eldest son, William, who was seated at Burley, had two other sons, Richard, an eminent man in his day, Knight of the Garter, Marshall of the Field, and Privy Counsellor to John of Gaunt, whom he accompanied into Spain, and died there the same year his uncle was beheaded, and Sir Roger, father of John Burley, of Bromcroft Castle, Sheriff of Salop in 1409, whose daughter, Joyce, became the wife of John de Gatacre, of Gatacre, a family of stupendous antiquity, having acquired the estate of Gatacre (now the principal seat of their lineal descendants), by grant from Edward the Confessor.

http://archiver.rootsweb.ancestry.com/th/read/GEN-MEDIEVAL/2006-11/...