Complex sentence: He studied at Cambridge and the Middle Temple, working for a short time as a lawyer with his uncle, Richard, his uncle Edmund Lewknor was tutor to the Jesuit priest John Gerrard.
Split into simpler sentences: He studied at Cambridge and the Middle Temple, working for a short time as a lawyer with his uncle, Richard. His uncle Edmund Lewknor was tutor to the Jesuit priest John Gerrard.