"Peter of Aspelt (aka Peter von Aichspelt, Peter von Basel, Peter von Mainz; born 1240/45, died June 5, 1320 in Mainz) was Archbishop of Mainz from ...
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1306 to 1320, and an influential political figure of the period. He brought the archbishopric to its peak of power." - (en.wikipedia.org 10.11.2019)