(L-R) Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge Crown Princess Mary of Denmark and Crown Prince Frederik of Denmark during a visit to the UNICEF Emergency Supply Centre on November 2, 2011 in Copenhagen, Denmark. Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge visited the centre to view efforts to distribute emergency food and medical supplies to eastern Africa where severe food shortages are affecting more than 13 million people. [Xinhua/Reuters Photo]