Complex sentence: John Graham (23 February 1794, Durham--15 June 1865, Chester) was an English churchman, master of Christ's College, Cambridge from 1830 to 1848 and Bishop of Chester from 1848 to 1865.
Split into simpler sentences: John Graham (23 February 1794, Durham--15 June 1865, Chester) was an English churchman and academic. He was master of Christ's College, Cambridge from 1830 to 1848 and Bishop of Chester from 1848 to 1865.