Some time before 4 November 1474/1475 Brandon married Elizabeth Bruyn, daughter and co-heiress of Sir Henry Bruyn of
South Ockendon,
Essex, and wife Elizabeth Darcy, himself the son of Sir
Maurice Bruyn. She was the widow of Thomas Tyrrell of Heron, Essex, whom she had married before 17 February 1461/1462, and who died after 3 July 1471, c. 13 October 1473, of the
City of London, of
Beckenham, Kent and of
South Ockendon,
Essex. She was a granddaughter of Sir
Maurice Bruyn (d. 1466), and daughter and co-heiress of Sir Henry Bruyn (d. 1461) by Elizabeth Darcy (died c. 1471), daughter of Sir Robert Darcy of
Maldon, Essex. Elizabeth Bruyn's paternal aunt, Joan Bruyn, married John Digges, great-grandfather of the scientist,
Leonard Digges. On her father's side Elizabeth Bruyn was descended from Sir William le Brune, Knight Chamberlain to King
Edward I. After William Brandon's death at the
Battle of Bosworth on 22 August 1485, she married William Mallory or Mallery, Esq., whom she survived. She died 7 or 26 March 1493/1494. By Elizabeth Bruyn, William Brandon had two sons and a daughter (the actual order of birth is not known): • William Brandon (d. before 1500). •
Charles Brandon, 1st Duke of Suffolk (ca. 1484 – 24 August 1545). • Anne Brandon, married firstly Sir John Shilston, and secondly
Sir Gawain Carew. Brandon also had two illegitimate daughters, Katherine, who married Roger Wolrich, and Elizabeth. William Brandon's sister was Mary Brandon who was the wife of John Reading (Reding) who was the treasurer of the King of England
Henry VII ==Notes==