Who was the legal grandson of the Earl of Merica?
Ælfgar, Earl of Mercia Ælfgar (died c. 1060) was the son of Leofric, Earl of Mercia, by his famous mother Godgifu (Lady Godiva). He succeeded to his father's title and responsibilities on the latter's death in 1057. He gained the additional title of Earl of East Anglia, but also was exiled for a time. Through the first marriage of his daughter he would become father-in-law of the Welsh king Gruffydd ap Llywelyn; a few years after his death, his daughter would become a widow and marry English King Harold.
Ralph Percy, 12th Duke of Northumberland Ralph George Algernon Percy, 12th Duke of Northumberland, {'1': ", '2': ", '3': ", '4': "} (born 16 November 1956), styled Lord Ralph Percy until 1995, is an English aristocrat, hereditary peer and largely rural landowner.