A younger son of limited means, Fortescue was dependent on his father for office and election to Parliament. John Minsheu, who dedicated his Spanish-English dictionary to him, described him as ‘the mirror of a good mind’, and credited him with inheriting his father’s memory and integrity.
His father’s death in 1607 deprived Fortescue of a parliamentary patron, and he probably never stood again. He inherited Salden House at Mursley in Buckinghamshire, and also lived in Clerkenwell, where he was lay impropriator.
