Using land he conquered from Sweden during the Great Northern War, this Romanov tsar built a new capital at St. Petersburg, and he famously passed a beard tax.
After stopping in a country church and hearing the sermon of an obscure priest named Feofan Prokopovich, this ruler made Prokopovich head of his country's church. This ruler signed the Treaty of Nystad after winning the Battle of Poltava against Charles XII, and once traveled incognito to Western Europe in order to personally spy on foreign navies. Using land he conquered from Sweden during the Great Northern War, this Romanov tsar built a new capital at St. Petersburg, and he famously passed a beard tax. For 10 points, name this modernizing Russian tsar nicknamed "The Great."
After stopping in a country church and hearing the sermon of an obscure priest named Feofan Prokopovich, this ruler made Prokopovich head of his country's church.
{Peter} I