Murrough McDermot O'Brien (c.1550 - 20 April 1573) was the 3rd Baron Inchiquin. He was the son of Dermod O'Brien, 2nd Baron Inchiquin and Margaret O'Brien and inherited his title in 1557 on the death of his father. He married Margaret Cusack, daughter of Sir Thomas Cusack of Cussington, Meath, Lord Chancellor of Ireland and his second wife Maud Darcy. He was murdered in 1573 by Dermot O'Shaughnessey, supposedly at the instigation of Ulick Burke, 3rd Earl of Clanricarde.Mosley, ed. ''Burke's Peerage'' 107th Edition Vol.2 p.2035 He was succeeded by his son, Murrough O'Brien, 4th Baron Inchiquin.

References

External links

O'Brien Pedigree
1573 deaths Murrough Year of birth uncertain People from County Clare 16th-century Irish nobility People of Elizabethan Ireland 3 {{Ireland-baron-stub