Question: Archduke Maximilian Francis of Austria (full German name: Maximilian Franz Xaver Joseph Johann Anton de Paula Wenzel von Österreich), was Archbishop and Elector Spiritual of Cologne, and Grand Master of the Teutonic Knights, his siblings include which Holy Roman Emperor, from 1765 to 1790 and ruler of the Habsburg lands from 1780 to 1790?
Sentence (from "List of monarchs of Prussia"): The Teutonic Knights were under the leadership of a Grand Master, the last of whom, Albert, converted to Protestantism and secularized the lands, which then became the Duchy of Prussia.
Relevant evidence: No