Edgar Stuart, Duke Of Cambridge

Edgar Stuart, Duke of Cambridge, was born on 14 September 1667 at St James's Palace. He was the fourth son of James, Duke of York (later James II of England), and his first wife, Anne Hyde. His baptism took place at St James's Palace, with the Duke of Albemarle, the Marquis of Worcester, and the Countess of Suffolk serving as sponsors. The name "Edgar" has historical significance in both English and Scottish monarchies, associated with Edgar the Peaceful and Edgar, King of Scotland.

On 7 October 1667, Edgar was granted the titles of Duke and Earl of Cambridge and Baron of Dauntsey. Prior to his birth, the title of Duke of Cambridge had been associated with other brothers of Edgar; his elder brother Charles had died at six months old in 1661 before receiving the patent for the dukedom, and another brother, James, was formally created Duke of Cambridge before his death at age three in 1667. Consequently, these titles became extinct until a later child, Charles, was born in 1677.

Edgar's mother, Anne Hyde, experienced health issues following his birth and did not fully recover. She gave birth to two additional daughters who, however, died in infancy. Anne Hyde died on 13 March 1671. Edgar himself died later that year at Richmond Palace on 8 June 1671, resulting in mourning observed by the court and the nation.

He was interred in the royal vault within the Henry VII Chapel at Westminster Abbey on 12 June 1671. His coffin was placed above that of his mother.

The town of Edgartown, located on Martha’s Vineyard in Massachusetts, was named in his honor. Settled in 1642 and incorporated in 1671, Edgartown’s naming occurred shortly before reports of Edgar's death reached North America. At that time, Martha’s Vineyard was part of the proprietary colony of New York, which had been granted to Edgar’s father by King Charles II in 1664.

In heraldic terms, Edgar bore a coat of arms as a grandson of a British sovereign. His arms consisted of the royal arms differenced by a label argent (silver) with five points, each marked with ermine.

Family lineage and ancestry connect Edgar to the broader context of the British royal family, but specific details are limited in the available information.