Complex sentence: Sir John "Jock" Colville, CB, CVO (28 January 1915-November 1987) was the son of the Honourable George Colville and Lady Cynthia Colville.
Split into simpler sentences: Sir John "Jock" Colville, CB, CVO, (28 January 1915-November 1987). He was the son of the Honourable George Colville and Lady Cynthia Colville.