hɪz mətˈɜːnəl ɡɹˈændpɛɹənts wɜː dʒˈɔːɹdʒ ɡɹˈænvɪl vˈɜːnənhˈɑːɹkoːɹt, ɐ bɹˈɪɾɪʃ mˈɛmbɚɹ ʌv pˈɑːɹləmənt, ænd lˈeɪdi ᵻlˈɪzəbəθ bˈɪŋæm, ðɪ ˈɛldɪst dˈɔːɾɚɹ ʌv ɹˈɪtʃɚd bˈɪŋæm, sˈɛkənd ˈɜːl ʌv lˈuːkən.
His maternal grandparents were George Granville Vernon-Harcourt, a British Member of Parliament, and Lady Elizabeth Bingham, the eldest daughter of Richard Bingham, 2nd Earl of Lucan.