Barnabas O'Brien, 6th Earl of Thomond

Irish politician (1590–1657)

Parents

• Lady Elizabeth FitzGerald
• Donogh O'Brien, 4th Earl of Thomond

Children

• Lady Penelope O'Brien
• Henry O'Brien, 7th Earl of Thomond

Siblings

• Henry O'Brien, 5th Earl of Thomond
• Teige O'Brien
• Margaret O'Brien

Partners

• Anne Fermor