Alexander Yaroslavich, called Nevsky, was a thirteenth-century prince of Novgorod and Grand Prince of Vladimir who defended northwestern Rus' against Swedish and German crusading incursions and navigated the Mongol domination of the Rus' principalities through strategic diplomacy. Born on May 13, 1221, in Pereslavl-Zalessky as the second son of Grand Prince Yaroslav II of Vladimir and Feodosia Mstislavna, he was named Prince of Novgorod in 1236. In 1239 he married Alexandra, daughter of the Prince of Polotsk, and they had several children, among them Daniel of Moscow.
His two most celebrated military victories came in rapid succession: the Battle of the Neva on July 15, 1240, where he routed a Swedish force at the confluence of the Izhora and Neva rivers — earning him the epithet 'Nevsky' — and the Battle on the Ice on April 5, 1242, where he decisively defeated the Livonian branch of the Teutonic Order on the frozen surface of Lake Peipus, halting the eastward advance of the Catholic crusading orders. Named Grand Prince of Vladimir in 1252, he chose co-operation over military confrontation with the Mongol Golden Horde, making four diplomatic journeys to the Khan's headquarters to negotiate tribute and prevent destructive Tatar reprisals against the Russian population. On his final return from the Horde in 1263, he fell gravely ill; near death he received the monastic Great Schema under the name Aleksiy, and died on November 14, 1263, at Gorodets on the Volga. Metropolitan Cyril of Kiev announced his death with the words 'the sun of Russia has set.' He was buried in Vladimir on November 23, 1263. The Russian Orthodox Church canonized him in 1547; his feast days are August 30 (translation of relics to Saint Petersburg), November 23 (the day of his burial), and May 23 (a general commemoration of Rostov-Yaroslavl saints).