Lady Honor O'Brien (died 1600) (1576–1600) Parents Una O'Brien Connor O'Brien, 3rd Earl of Thomond Children Joan FitzMaurice Patrick FitzMaurice, 17th Baron of Kerry and Lixnaw Siblings Daniel O'Brien, 1st Viscount Clare Mary O'Brien Teige O'Brien Margaret O'Brien Donogh O'Brien, 4th Earl of Thomond Honora O'Brien Partners Thomas Fitzmaurice, 18th Baron Kerry