When Prince Edgar Stuart, Duke of Cambridge was born on 14 September 1667, in Saint James's Palace, London, England, United Kingdom, his father, King James Stuart II of England And VII of Scotland, was 33 and his mother, Lady Anne Hyde, was 30. He died on 8 June 1671, in Richmond, Surrey, England, United Kingdom, at the age of 3, and was buried in Westminster Abbey, Westminster, London, England, United Kingdom.
From an Old English personal name derived from ēad ‘prosperity, riches’ + gār ‘spear’. This was the name of an English king and saint, Edgar the Peaceful ( d. 975 ), and of Edgar Atheling ( ?1060–?1125 ), the young prince who was chosen by the English to succeed Harold as king in 1066 , but who was supplanted by the Normans. Although used only infrequently in Britain, it is still fairly popular in the United States.