Elizabeth was the daughter of John Grey, 2nd Viscount Lisle and Lady Muriel Howard.
Betrothal to his eight-year-old ward facilitated Brandon's elevation to the peerage as Viscount Lisle in May 1513.
[3] In 1515, Brandon married Mary Tudor, the Queen Dowager of France and Henry VIII's younger sister (without having obtained the consent of the King).
[3] Having no need of Elizabeth as a potential bride himself, Brandon sold her wardship to Katherine Plantagenet, Countess of Devon for £4,000.
[4] The Countess married Elizabeth to her son Henry Courtenay, a cousin of the King and grandson of Edward IV of England, but as she died aged fourteen it is unlikely the marriage was consummated.