"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 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)