hɜːɹ ˈɛldɚ sˈɪstɚ, ˈæn, pɹɪsˈiːdᵻd hɜːɹ æz fˈoːɹtiːnθ lˈeɪdi hˈɛɹiz ʌv tˈɛɹɛɡəlz, hɜː jˈʌŋɡɚ tˈuː sˈɪstɚz wɜː lˈeɪdi sˈɛɹə klˈʌʔn̩ ænd dʒˈeɪn, mˈɑːɹʃənˌɛs ʌv lˈoʊðiən, hˌuː səksˈiːdᵻd mˈɛɹi æz sˈɪkstiːnθ lˈeɪdi hˈɛɹiz ʌv tˈɛɹɛɡəlz.
Her elder sister, Anne, preceded her as 14th Lady Herries of Terregles, her younger two sisters were Lady Sarah Clutton and Jane, Marchioness of Lothian, who succeeded Mary as 16th Lady Herries of Terregles.