Original sentence: John Alexander Thynne, 4th Marquess of Bath (March 1 1831–April 20 1896) was the son of Henry Thynne, 3rd Marquess of Bath
Edited sentence: John Alexander Thynne, 4th Marquess of Bath (March 1 1831 – April 20 1896) was the son of Henry Thynne, 3rd Marquess of Bath