pˈaɪətɹoʊ hɪmsˈɛlf dˈaɪd ɐ jˈɪɹ lˈeɪɾɚɹ ˌɔn θˈɜːtiːn sɛptˈɛmbɚɹ ˈeɪthˈʌndɹɪd sˈɪksti fˈoːɹ, hˌævɪŋ bˌɪn ˈæmbʊʃt ænd ɐtˈækt baɪ ɐ ɡɹˈuːp ʌv mˈælkɔntˌɛnts wˌaɪl ɹᵻtˈɜːnɪŋ fɹʌm vˈɛspɚz æt ðə tʃˈɜːtʃ ʌv sˌæn zækˈɛɹiə.
Pietro himself died a year later on 13 September 864, having been ambushed and attacked by a group of malcontents while returning from vespers at the Church of San Zaccaria.