hiː sˈæt fɔːɹ hɪz fˈæmɪli bˈʌɹoʊ ʌv bˈʌkɪŋˌæm wˈʌn θˈaʊzənd sˈɛvənhˈʌndɹɪd sˈɛvənti wˈʌn θˈaʊzənd sˈɛvənhˈʌndɹɪd nˈaɪnti, fɹʌm wˈʌn θˈaʊzənd sˈɛvənhˈʌndɹɪd sˈɛvənti fˈoːɹ tə wˈʌn θˈaʊzənd sˈɛvənhˈʌndɹɪd ˈeɪɾi ɪn pˈɑːɹtnɚʃˌɪp wɪð hɪz twˈɪn bɹˈʌðɚ, ɹˈɪtʃɚd.
He sat for his family borough of Buckingham 1770–1790, from 1774 to 1780 in partnership with his twin brother, Richard.