Complex sentence: John Armine Wodehouse, 5th Earl of Kimberley (born 1951) was the only child of John Wodehouse, 4th Earl of Kimberley and Carmel Maguire, daughter of Mickey Maguire, welterweight champion of Australia.
Split into simpler sentences: John Armine Wodehouse, 5th Earl of Kimberley (born 1951). Lord Kimberley was born in 1951, the only child of John Wodehouse, 4th Earl of Kimberley and Carmel Maguire, daughter of Mickey Maguire, welterweight champion of Australia.