With Elizabeth's accession, it seemed probable that the royal house would bear the Duke of Edinburgh's name, in line with the custom of a wife taking her husband's surname on marriage. Lord Mountbatten advocated the name House of Mountbatten. Philip suggested House of Edinburgh, after his ducal title.[63] The British prime minister, Winston Churchill, and Elizabeth's grandmother Queen Mary favoured the retention of the House of Windsor, so Elizabeth issued a declaration on 9 April 1952 that Windsor would continue to be the name of the royal house. Philip complained, "I am the only man in the country not allowed to give his name to his own children."[64] In 1960, the surname Mountbatten-Windsor was adopted for Philip and Elizabeth's male-line descendants who do not carry royal titles. Therefore, those that enjoy the Dignity of HRH and Prince or Princess [unmarried], would carry the surname Windsor.