 In 1369 Bremen again lent money to Albert II against the collateral of his mint, which was from then on run by the city council, which took over his right to mint coins.In 1377 Bremen purchased from Duke Frederick I of Brunswick-Lüneburg many of the Prince-Archbishop's castles, which Albert had pledged as security for a loan to Frederick's predecessor.Thus Bremen gained a powerful position in the Prince-Archbishopric (ecclesiastical principality), in effect sidelining its actual ruler.