1911 Encyclopædia Britannica, Volume 8… (1911)
“ He signed the National Covenant and was one of the leaders of the Presbyterian party, but as one of the “Engagers” of 1648 he was prevented from holding any public office, and after the execution of Charles I. he joined Charles II. on the continent. He was made privy councillor at the Restoration, extraordinary lord of session and lord of the articles in 1667, and in 1671 lord privy seal. ”
