Dermod O'Brien

Parents

• Toirdhealbhach Donn Ó Briain
• Raghnailt Macnamara

Children

Siblings

• Slany O'Brien
• Honora O'Brien
• Any O'Brien
• Margaret O'Brien
• Ranelt O'Brien
• Móre O'Brien
• Teig O'Brien
• Donogh O'Brien
• Connor O'Brien
• Murrough O'Brien, 1st Earl of Thomond