Peter the First alias the Great has literally ruined Russia, lost at least a quarter of its population, tried to break into Europe, moved the capital of Russia from Moscow to St Petersburg, made Russia to an awkward upstart and a laughing stock of Europe.
After spending 2 years in Holland and Germany Peter I came home another man speaking Russian with the German accent and ordered to call him Great from now on. Peter ordered the nobility to cut beards, smoke tobacco and dance ballet. Better yet, Peter reformed the Orthodox church into total submission.
Old Russian Orthodox Church called him Antichrist, so he just had to reform it into oblivion. Most of the stubborn Orthodox crowd was simply burnt alive. Peter, once he became the Great one, beheaded old imperial guard, created the modern army that won and built a fleet that sank. The king of Sweden Karl XII who wanted to usurp the Russian throne too, so Peter beat Karl’s army rumored to be the best of this time into pulp in Poltava, Ukraine.
Peter the Great was a reformer to the hilt. Peter did not quite succeed in his brazen reforms, so he left a Testament ordering the Russian Empire to reconquer Europe.