The Russian Orthodox Church, also known as the Church of Russia, is one of the autocephalous Eastern Orthodox churches, ranking fifth after Constantinople, Alexandria, Antioch, and Jerusalem. It exercises jurisdiction over Orthodox Christians in Russia and surrounding Slavic lands, as well as exarchates and patriarchal representation churches around the world. It also exercises jurisdiction over the autonomous Church of Japan and Orthodox Christians in China. The Patriarch of Moscow and All Russia is currently His Holiness Alexei II.