ˈænsən wʌzðə sˈɛvənθ sˈʌn ʌv tˈɑːməs ˈænsən, sˈɛkənd ˈɜːl ʌv lˈɪtʃfiːld ænd lˈeɪdi hˌæɹɪˈɛt dʒˌɔːɹdʒiˈɑːnə lˈuːɪsə, dˈɔːɾɚɹ ʌv dʒˈeɪmz hˈæməltən, fˈɜːst dˈuːk ʌv ˌæbɚkˈɔːɹn.
Anson was the seventh son of Thomas Anson, 2nd Earl of Lichfield and Lady Harriett Georgiana Louisa, daughter of James Hamilton, 1st Duke of Abercorn.