The Archbishop of Mainz is a senior ecclesiastical leader in the Roman Catholic Church and serves as the head of the Archdiocese of Mainz in Germany. This position is historically significant, as the Archbishop has traditionally been one of the most influential figures in the Holy Roman Empire, often acting as a prince-elector. The Archbishop of Mainz is responsible for overseeing the spiritual and administrative needs of the archdiocese, which includes various parishes and institutions. The role also involves participating in important church councils and representing the Catholic Church in regional and national matters.