William Bardolf, 4th Baron Bardolf
, of Wormegay, Norfolk
(21 October 1349 – 29 January 1386) was an extensive landowner in Norfolk
. In 1382 Bardolf had livery of his lands from the Crown. He was a descendant of William de Warenne, 2nd Earl of Surrey
He was summoned to parliament from 20 January 1376 to 3 September 1385, as "William Bardolf of Wormegay". He served in the French and Irish wars, latterly under John of Gaunt
, Duke of Lancaster.
He married Agnes (d. 12 June 1403), daughter of Sir Michael de Poynings, 2nd Baron Poynings
, Kt., of Bures (1317-1369). Coppinger wrote: "Sir Michael de Poynings, 2nd Baron, gave a thousand marks to Queen Philippa in 1366 for the wardship and marriage of William, son and heir of John Lord Bardolf, to the end that he might take Agnes his daughter to wife, who by the name of 'Agnes Bardolf' is mentioned as a legatee in the will of her mother, Joane Lady Poynings dated 12th May 1369 and by that of 'Lady Bardolf my sister' in the will of Thomas Lord Poynings 28th October 1374." Their daughter Cecily Bardolf (d. 1432) married Sir Brian Stapleton, of Ingham
(1379 - 1438), Sheriff
, a veteran of the Battle of Agincourt
, and had issue Sir Miles Stapleton
Bardolf died in 1385, aged 36, and was succeeded by his son, Thomas Bardolf, 5th Baron Bardolf
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