Frederica of Hanover (Friederike Luise Thyra Victoria Margarita Sophia Olga Cecilia Isabella Christa; Greek: Φρειδερίκη της Ελλάδας; pronounced [friðeˈrici ˈtis eˈlaðas]; 18 April 1917 – 6 February 1981) was Queen consort of Greece from 1947 until 1964 as the wife of King Paul, thereafter Queen mother.
Princess Frederica Charlotte of Prussia (Friederike Charlotte Ulrike Katharina; 7 May 1767 – 6 August 1820) was a Prussian and British princess. She was the eldest daughter of King Frederick William II of Prussia and the wife of Prince Frederick, Duke of York and Albany, second son of King George III of the United Kingdom
Princess Charlotte of Clarence Born on 27 March 1819, Hanover. She died the same day as her birth. She was the oldest daughter of William IV of the United Kingdom and his wife Adelaide. She had four younger siblings- Elizabeth of Clarence, two stillborn brothers and a stillborn sibling of unknown sex.