^This family tree is based on genealogies of the earls of Thomond.[2][3]
Citations
^Cokayne 1896, p. 391, Note b. "They [the O'Briens] were descended from the celebrated Brien Boroihme, principal king of Ireland (1002–1004) through his grandson Turlogh ..."
^Cokayne 1896, p. 391, line 16. "He [Henry O'Brien] m. 13 July 1608, at Brereton, co. Chester, Mary, only surv. da. [survivung daughter] of Williom (Brereton), 1st Baron Brereton of Leighlin [I. [Ireland] ], by Margaret, da. of Sir John Savage of Rocksavage, co. Chester."
^Burke 1866, p. 406, left column, line 76. "V. Honora, m. 1st, to Sir Francis Inglefield, Knt., of Wotton-Bassett; and 2nbly, to Sir Robert Howard, Knt., son of the Earl of Berkshire."
^Cokayne 1896, p. 392, line 14. "... was sum. [summoned] v.p. [while his father was alive] to Parl. [parliament] [I. [Ireland] ] in his father's Barony as Baron Ibrackan [I.], 31 March 1613."
^Cokayne 1896, p. 392, line 16. "... suc. [succeeded] to the Earldom of Thomond [I. [Ireland] ], on 5 Sep. 1624;"
^Cokayne 1896, p. 392, line 19. "He [Henry] d. [died] s.p.m. [without male issue] 1639, and was bur. [buried] in Limerick Cathedral, aged about 56."