æt hɪz ᵻlˈɛkʃən ɪn ˈeɪthˈʌndɹɪd θˈɜːɾi sˈɪks hiː nˈɑːmᵻnˌeɪɾᵻd hɪz sˈʌn dʒəvˈɑːni æz kˈoʊɹˈiːdʒənt, kəntˈɪnjuːɪŋ ðə pɹˈɑːsɛs bɪɡˈʌn ɐ sˈɛntʃɚɹi ˈɜːlɪɚɹ ʌv ɪstˈæblɪʃɪŋ ɐ hɚɹˈɛdətˌɛɹi dˈuːkdəm wɪð daɪnˈæstɪk səksˈɛʃən.
At his election in 836 he nominated his son Giovanni as co-regent, continuing the process begun a century earlier of establishing a hereditary dukedom with dynastic succession.