Louise viewed marriage to any prince as undesirable, and announced that she wished to marry John Campbell, Marquess of Lorne, heir to the Dukedom of Argyll. No marriage between a daughter of a monarch and a British subject had been given official recognition since 1515, when Charles Brandon, 1st Duke of Suffolk, married King Henry VIII's sister Mary. Louise's brother, the prince of Wales, was strongly opposed to a marriage with a non-mediatized noble. Furthermore, Lorne's father, George Campbell, was an ardent supporter of William Ewart Gladstone, and the Prince of Wales was worried that he would drag the royal family into political disputes. Nevertheless, the opposition was crushed by the queen, who wrote to the Prince of Wales in 1869: