Blessing an Army, and a Center That Outlasted Empires

Sergius's reputation for holiness drew him into politics he had spent his life trying to avoid. In 1380, with the Golden Horde's general Mamai advancing on Russian lands, Prince Dmitri of Moscow traveled to Sergius's monastery to ask his blessing before the campaign that became the Battle of Kulikovo, a battle usually treated as the first major Russian victory over Mongol-Tatar forces even though full independence remained a century away.

Tradition holds that Sergius sent two of his own monks, Peresvet and Oslyabya, both former warriors, to fight alongside Dmitri's army, and that Peresvet died in the battle's opening single combat. Sergius also worked repeatedly as a mediator among the rival princes of Moscow, Ryazan and other principalities, using his standing as a holy man to negotiate peace in disputes secular diplomacy had failed to settle. He refused the office of Metropolitan of Moscow, the senior bishopric of the Russian church, when it was offered to him late in life, choosing to remain at his own monastery until his death in 1392. That monastery, rebuilt and expanded over the following centuries as the Trinity Sergius Lavra, survived Polish sieges, Napoleon's invasion and Soviet closure to remain the effective spiritual center of the Russian Orthodox Church, and Sergius himself is its patron and the single most venerated native saint in Russian Christianity.