Henry Horatio O'Brien, Lord O'Brien

(died 1690) (1670–1690)

Parents

• Sarah Russell
• Henry O'Brien, 7th Earl of Thomond

Children

• Mary O'Brien
• Henry O'Brien, 8th Earl of Thomond

Siblings

• Lady Mary O'Brien
• Lady Elizabeth O'Brien
• Lady Auberie Anne Penelope O'Brien
• Henry O'Brien, Lord Ibrackan

Partners

• Henrietta Howard, Countess of Suffolk