Complex sentence: Brooke was the son of Hon. Henry Brooke and his wife Anne Sutton, daughter of Sir Henry Sutton of Nottinghamshire; his father was the fifth son of George Brooke, 9th Baron Cobham.
Split into simpler sentences: Brooke was the son of Hon. Henry Brooke and his wife Anne Sutton, daughter of Sir Henry Sutton of Nottinghamshire. His father was the 5th son of George Brooke, 9th Baron Cobham.