'Fugger teamed up with another Habsburg client, for whom he had bought the archbishopric of Mainz, and the pair began to sell indulgences (a forgiveness of sins

'Fugger teamed up with another Habsburg client, for whom he had bought the archbishopric of Mainz, and the pair began to sell indulgences (a forgiveness of sins, which provided, for a fee, a short cut to heaven), splitting the proceeds with Pope Leo, who used the cash to build St Peter’s Basilica. In 1517 Martin Luther was sufficiently outraged by this scheme that he wrote the “95 Theses” that damned Rome, sparking the Protestant Reformation.'