hiː wʌzðə sˈɛkənd sˈʌn ʌv tˈɑːməs lˈæli ɔːɹ oʊmˈʌləli ʌv tˌʌlɐɡnˈɑːdəli, baɪ hɪz wˈaɪf, dʒˈeɪn, sˈɪstɚɹ ʌv θiːəbˈɔːld dˈɪlən, sˈɛvənθ vˈaɪkaʊnt dˈɪlən, ænd jˈʌŋɡɚ bɹˈʌðɚɹ ʌv dʒˈeɪmz lˈæli.
He was the second son of Thomas Lally (or O'Mullally) of Tullaghnadaly, by his wife, Jane, sister of Theobald Dillon, 7th Viscount Dillon, and younger brother of James Lally.