Allied with Venice, he besieged Ancona in 1173, but was forced to retreat; the widow Stamira, later accounted an Italian national heroine, had an important role in the city's resistance.
ˈælaɪd wɪð vˈɛnɪs, hiː bᵻsˈiːdʒd æŋkˈoʊnə ɪn wˈʌn θˈaʊzənd wˈʌnhˈʌndɹɪd sˈɛvənti θɹˈiː, bˌʌt wʌz fˈoːɹst tə ɹᵻtɹˈiːt; ðə wˈɪdoʊ stæmˈiəɹə, lˈeɪɾɚɹ ɐkˈaʊntᵻd ɐn ɪtˈæliən nˈæʃənəl hˈɛɹoʊˌɪn, hæd ɐn ɪmpˈoːɹtənt ɹˈoʊl ɪnðə sˈɪɾiz ɹᵻsˈɪstəns.