His aunt Elizabeth, Countess of Portsmouth agreed to leave him her interest in Audley End if he changed his surname to Griffin: he did so in 1749, by Act of Parliament, becoming John Griffin Griffin.
His aunt Elizabeth, Countess of Portsmouth (d.1762) agreed to leave him her interest in Audley End if he changed his surname to Griffin. He did so in 1749, by Act of Parliament, becoming John Griffin Griffin.