Complex sentence: Thomas Butler, 7th Earl of Ormond, P.C. (c.1426-3 August 1515), was the son of James Butler, 4th Earl of Ormond and Joan de Beauchamp.
Split into simpler sentences: Thomas Butler, 7th Earl of Ormond, P.C., was born c.1426 and died 3 August 1515. He was the son of James Butler, 4th Earl of Ormond and Joan de Beauchamp.