Edward Hyde, 1st Earl of Clarendon was the maternal grandfather of a woman who would become the Queen of England, Scotland and Ireland on what date? 
Edward Hyde, 1st Earl of Clarendon: Edward Hyde, 1st Earl of Clarendon (18 February 16099 December 1674) was an English statesman who served as Lord Chancellor to King Charles II from 1658, two years before the Restoration of the Monarchy, until 1667. Edward Hyde, 1st Earl of Clarendon:  He was the maternal grandfather of two monarchs, Queen Mary II and Queen Anne. Anne, Queen of Great Britain: Anne (6 February 1665 – 1 August 1714) became Queen of England, Scotland and Ireland on 8 March 1702.
8 March 1702