Ka cika wannan magana: A lokacin da aka raba Italiya a shekara ta 1054, yawancin kudancin Italiya har yanzu suna ƙarƙashin mulkin Byzantine kuma an tsara su a matsayin Catepanate na Italiya. Shekaru da yawa, rayuwar coci a yankunan Byzantine na Italiya tana haɓaka ƙarƙashin tasirin al'adun Latin da na Byzantine. A cikin ƙarni na 11, cocin Latin a Byzantine Italiya har yanzu ba su yi amfani da Addinin Nicene (Filioque) ba kuma suna cikin cikakken tarayya da Eastern Orthodoxy. A lokacin yaƙe-yaƙe na Byzantine-Norman, Daular Byzantine a ƙarshe ta rasa matsayinta na ƙarshe a Yamma. An kammala nasarar Norman na kudancin Italiya tare da
Cin nasarar Bari a 1071.