His successor Albrecht of Brandenburg, elected in 1513, was at the same time the most splendid and the most tragic sovereign of Halle. As "Erzkanzler des Reiches" (Archchancellor of the state), cardinal, Archbishop and Prince-elector of Mainz, Archbishop of Magdeburg and Administrator of Halberstadt he -and his favourite residence, the Moritzburg- were in the focal point of European history. In 1517 he called the notorious Dominican friar Johann Tetzel to the Moritzburg and started a limitless sale of indulgences, financing the archbishop's large collection of relics. The collection, which was first housed in the castle's chapel and later moved to the city's cathedral, composed of 353 reliquaries with as much as 21,484 single relics, among these 42 whole bodies of saints, rendering it ideally and materially extremely valuable; it was the most outstanding of its kind in Germany. After the Protestant Reformation Albrecht gave up the city and retreated to Mainz.