ɐ bˈɪʃəpɹˌɪk ʌv kˈæstʃəlˌoʊ wʌz ɪstˈæblɪʃt ɚɹˈaʊnd θɹˈiːhˈʌndɹɪd fˈɪfti ˌeɪdˈiː ˌɔn tˈɛɹɪtˌoːɹi splˈɪt fɹʌmðɪ ˌændɐlˈuːʒən dɪoʊsˈiːz ʌv tˈuːtʃi nˈaʊ ˈɔːlsoʊ ɐ tˈɪtʃəlɚ sˈiː.
A Bishopric of Castulo was established around 350 AD on territory split from the Andalusian diocese of Tucci (now also a titular see).