Elizabeth Woodville married Sir Edward Grey's son John, joining him at Groby, where they had two sons. After John's death in battle at the Second Battle of St Albans in 1461, she petitioned King Edward IV for return of her confiscated lands, and won not just her case but his heart and hand in marriage. As Queen she set about promoting the causes of her Woodville relatives, her sons by John Grey, and her children by Edward IV, with mixed results. Of the royal children, the two boys became the ill-fated Princes in the Tower, whereas her daughter, also Elizabeth, married the victor of Bosworth Field, Henry VII, uniting the houses of Lancaster and York to end the Wars of the Roses. Elizabeth Woodville lived to see the birth of three royal grandchildren: Prince Arthur, Margaret, Queen of Scotland, and the future Henry VIII.