Thomas Butler, 10th Earl of Ormond and 3rd Earl of Ossory PC (Ire), was an influential courtier in London at the court of Elizabeth I. He was Lord Treasurer of Ireland from 1559 to his death. He fought for the crown in the Rough Wooing, the Desmond Rebellions, and Tyrone's Rebellion. He fought his rival, Gerald FitzGerald, 14th Earl of Desmond in the Battle of Affane in 1565.
- Occupation
- politician, courtier, military officer
- Position held
- Lord High Treasurer
- Citizenship
- Kingdom of Ireland
- Born
- 1531
