His name before assuming the Swedish title in 1810 was Christian August of Schleswig-Holstein-Sonderburg-Augustenburg, or Christian August of Augustenburg for short.
hɪz nˈeɪm bᵻfˌoːɹ ɐsˈuːmɪŋ ðə swˈiːdɪʃ tˈaɪɾəl ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd tˈɛn wʌz kɹˈɪstʃən ˈɔːɡəst ʌv ʃlˈɛswɪɡhˈɑːlstaɪnsˈɑːndɚbˌɜːɡˈɔːɡəsʔˌn̩bɜːɡ, ɔːɹ kɹˈɪstʃən ˈɔːɡəst ʌv ˈɔːɡəsʔˌn̩bɜːɡ fɔːɹ ʃˈɔːɹt.