Margaret's father led the Lancastrian forces in the
First Battle of St Albans (22 May 1455) against his main rival
Richard Plantagenet, 3rd Duke of York and was killed. Her husband was badly wounded, but did not die until three years later, possibly of the plague.[4] Shortly after the battle Margaret gave birth to a son
Henry, who became his grandfather's heir and succeeded as Duke of Buckingham as an infant.[3] After Humphrey's death Margaret married Sir Richard Dayrell, younger son of William Dayrell of
Littlecote, who was sub-treasurer of England.[5] Their daughter Margaret married
James Tuchet, 7th Baron Audley.[5]
Ancestry
Ancestors of Margaret Beaufort, Countess of Stafford