, dˈuːk ʌv ʃlˈɛswɪɡhˈɑːlstaɪnsˈɑːndɚbˌɜːɡˈɔːɡəsʔˌn̩bɜːɡ twˈɛnti ˈeɪt sɛptˈɛmbɚ wˈʌn θˈaʊzənd sˈɛvənhˈʌndɹɪd sˈɪksti fˈaɪv ɪn ˈɔːɡəsʔˌn̩bɜːɡ fˈoːɹtiːn dʒˈuːn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈoːɹtiːn ɪn ˈɔːɡəsʔˌn̩bɜːɡ wʌzɐ dˈeɪnɪʃ pɹˈɪns ænd fjˈuːdəl mˈæɡneɪt.
, Duke of Schleswig-Holstein-Sonderburg-Augustenburg (28 September 1765 in Augustenburg – 14 June 1814 in Augustenburg) was a Danish prince and feudal magnate.