Complex sentence: The Russian government does not claim Spruce Island, and neither does the Russian Orthodox Church, which ceded its administrative control over Alaska's holy sites when it granted autocephaly to the Orthodox Church in America in 1970.
Split into simpler sentences: The Russian government does not claim Spruce Island, and neither does the Russian Orthodox Church. In fact, which ceded its administrative control over Alaska's holy sites when it granted autocephaly to the Orthodox Church in America in 1970.