Royal Households of the United Kingdom Queen and the Prince of Wales, had approved a plan that would have the Duke and Duchess of Cambridge permanently move to a larger apartment in Kensington Palace in 2013, after it is renovated. This apartment was previously occupied by the Queen's sister, Princess Margaret, Countess of Snowdon and her husband Antony Armstrong-Jones, Earl of Snowdon after their marriage in 1960. The apartment was retained by Princess Margaret after her divorce in 1978 and was her London residence until her death in 2002. Prince Harry will then move his official residence from Clarence House to the apartment vacated by the
Duke of Cambridge was to be created Duke of Cambridge, Earl of Strathearn and Baron Carrickfergus. The letters patent granting these titles received the great seal on 26 May 2011. If Prince William dies before becoming king, then his sons are eligible to inherit the dukedom: Duke of Cambridge Duke of Cambridge, one of the six current royal dukedoms in the United Kingdom, is a hereditary title of specific rank of nobility in the British royal family. The title (named after the city of Cambridge in England) is hereditary among male agnatic descendants of the titleholder by primogeniture, and has been conferred upon