George Berkeley, 8th Baron Berkeley and Frances de Vere, daughter of John de Vere, 15th Earl of Oxford and Elizabeth Trussell. Berkeley's childhood was spent in Warwickshire, where he was a pupil of the translator, Philemon Holland of Coventry, and of Henry Ashwood. He succeeded to his titles of Baron Berkeley of Berkeley, Mowbray, Segrave, & Breuse of Gower at the death of his grandfather, Henry Berkeley, 7th Baron Berkeley, on 26 November 1613. His family seat was at Berkeley Castle in Gloucestershire. He was made a Knight of the Order of the Bath on November 4, 1616, when Prince Charles was made Prince of
Margaret Mortimer, Baroness Berkeley Margaret Mortimer, Baroness Berkeley Margaret Mortimer, Baroness Berkeley (2 May 1304 – 5 May 1337) was the wife of Thomas de Berkeley, 3rd Baron Berkeley. She was the eldest daughter of Roger Mortimer, 1st Earl of March, the "de facto" ruler of England from 1327 to 1330, and his wife Joan de Geneville, Baroness Geneville. Margaret Mortimer was the eldest of the twelve children of Roger Mortimer, 1st Earl of March and Joan de Geneville, Baroness Geneville. Her paternal grandparents were Edmund Mortimer, 2nd Baron Mortimer and Margaret de Fiennes. Her maternal grandparents were Piers de Geneville, of Trim Castle