Who was the legal grandson of the Earl of Merica?
Ealdgyth, daughter of Earl Ælfgar Ealdgyth ("fl. c". 1057–1066), also Aldgyth or in modern English, Edith, was a daughter of Ælfgar, Earl of Mercia, the wife of Gruffudd ap Llywelyn (d. 1063), ruler of all Wales, and later the wife and queen consort of Harold Godwineson, king of England in 1066. She was described by William of Jumièges as a considerable beauty.
Charles Courtenay, 19th Earl of Devon Charles Peregrine Courtenay, 19th Earl of Devon (born 14 August 1975), styled as Lord Courtenay until 2015, is an English barrister and the son of the late 18th Earl of Devon.