He played a role in the process leading to the Schism of 1054 by rejecting a proposal by Patriarch Eustathius of Constantinople to recognise that Patriarchate's sphere of interest in the east.
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Alberic III (died 1044) was the Count of Tusculum, along with Galeria, Preneste, and Arce, from 1024, when his brother the count Roman was elected Pope John XIX, until his own death.
In 1028, after some encouragement from the brothers they won approval from the King Conrad II and Pope John XIX to move the Episcopal See from Zeitz to Naumburg on the grounds that the castle would provide more protection for the See than it could get in Zeitz.