Complex sentence: He was a Commissioner of Trade and Plantation in 1673, and he became Cofferer of the Household to Charles II on 9 December 1679, following the death of William Ashburnham.
Split into simpler sentences: He was a Commissioner of Trade and Plantation in 1673. He became Cofferer of the Household to Charles II on 9 December 1679, following the death of William Ashburnham.