William O'Brien, 2nd Marquess of Thomond
William O'Brien, 2nd Marquess of Thomond, 6th Earl of Inchiquin, 1st Baron Tadcaster KP PC (I) was an Irish peer and Chief of Clan O'Brien. Wikipedia
Born: 1765
Died: August 21, 1846 (age 81 years)
Children: Lady Elisabeth O'Brien, Lady Sarah O'Brien, Lady Mary O'Brien, and more
Grandchildren: Sir Edward Arthur George Stucley, 3rd Bt., Susan Frances Hotham, Lewis George Orchard Stucley, and more
Partner: Elizabeth Trotter (1799–)
Parents: Mary Carrick and Edward Dominic O'Brien