William Ferrers, 3rd Baron Ferrers of Groby

Two years after his father's death, an allowance of £50 was remitted by the king and council for his care (later, in 1349, converted into a grant of the manors of Stoke on Tern, Wootton and Hethe).

[3] Historian Eric Acheson has suggested that it was a direct consequence of the Black Death that led Ferrers to exchange away many of his outlying estates (for example, those in Shropshire) for some closer to home (in Buckinghamshire), with the Earl of March in the late 1350s.

By 1364 he had also sold his remaining lands in Ireland,[2] having already been exonerated from having taxes levied on his Irish estates for the defence of that country in 1460, due to his constant service with the king in the preceding years, "at great cost to himself.

"[3] Acheson has also suggested that it was probably Ferrers' direly unstable financial situation that led him to seek a career in royal service,[2] as the king had started a new war with France.

Ferrers accompanied the Black Prince to Gascony in 1355. fought at the Battle of Crécy in 1355,[citation needed] at Poitiers the following year, and was with Henry of Grosmont, 1st Duke of Lancaster in the 1359–60 Reims campaign.

Arms of Ferrers, Baron Ferrers of Groby : Gules , seven mascles or conjoined 3:3:1 . These are the arms of de Quincy , adopted in lieu of his paternal arms ( Vairy or and gules ) by William Ferrers, 1st Baron Ferrers of Groby (1272–1325). [ 1 ] He was the son and heir of Sir William de Ferrers (1240–1287) of Groby, the younger son of William de Ferrers, 5th Earl of Derby (by his second wife Margaret de Quincy, daughter and heiress of Roger de Quincy, 2nd Earl of Winchester (c. 1195 – 1264)) who founded the line of Baron Ferrers of Groby , having been given Groby Castle by his mother Margaret de Quincy.