 At the time of his birth, his father was styled Prince Adolphus, Duke of Teck, the eldest son of Francis, Duke of Teck and Princess Mary Adelaide of Cambridge (a granddaughter of King George III).His mother was The Duchess of Teck (née Lady Margaret Evelyn Grosvenor), daughter of 3rd Marquess of Westminster (later 1st Duke of Westminster).He was styled "His Serene Highness Prince Frederick of Teck" from his birth.