Ivan the First.

Life in Moscow has been extremely prosperous as of late. I am now the General tax collector of all Slavic lands for the Mongols. They have named me the "great prince", not that I needed the title. My power has become extremely influentual since I began loaning money to the less fortunate princes. Oh, I also was the commander of a large Mongol army when I shut down an attempted revolt by the prince of Tver.