Henry III von Virneburg (c. 1295 – December 21, 1353) was Archbishop and Elector of Mainz (1328/37–1346/53).
[1] It was his uncle's influence with Pope John XXII that determined the papal appointment for Henry as Archbishop of Mainz.
Following Pope John XXII's death, Heinrich became a supporter of Emperor Ludwig of Bavaria.
[4] On 7 April 1346, Henry, because of his partisanship with Emperor Louis IV, was deposed by Pope Clement VI.
[5] The same day, Clemens appointed Gerlach von Nassau as the new archbishop of Mainz.