Complex sentence: Violet Gibson, the sister of Baron Ashbourne born in Ireland is best known for shooting Benito Mussolini, Italy's Fascist leader, in the middle of the street on 7 April 1926.
Split into simpler sentences: Violet Gibson, the sister of Baron Ashbourne, is best known for shooting Benito Mussolini. She shot Italy's Fascist leader in the middle of the street on 7 April 1926.