Alexander Nevsky in the context of "Grand Duchy of Moscow"

The Neva (/ˈniːvə/ NEE-və, UK also /ˈneɪvə/ NAY-və; Russian: Нева́, IPA: [nʲɪˈva] ) is a river in northwestern Russia flowing from Lake Ladoga through the western part of Leningrad Oblast (historical region of Ingria) to the Neva Bay of the Gulf of Finland. Despite its modest length of 74 kilometres (46 mi), it is the fourth-largest river in Europe in terms of average discharge (after the Volga, the Danube and the Rhine).

The Neva is the only river flowing from Lake Ladoga. It flows through the city of Saint Petersburg, the three smaller towns of Shlisselburg, Kirovsk and Otradnoye, and dozens of settlements. It is navigable throughout and is part of the Volga–Baltic Waterway and White Sea–Baltic Canal. It is the site of many major historical events, including the Battle of the Neva in 1240 which gave Alexander Nevsky his name, the founding of Saint Petersburg in 1703, and the Siege of Leningrad by the German army during World War II. The river played a vital role in trade between Byzantium and Scandinavia.

Daniil Aleksandrovich (Russian: Даниил Александрович; 1261 – 5 March 1303), also known as Daniil of Moscow, was the youngest son of Alexander Nevsky and forefather of all Princes of Moscow. His descendants are known as the Daniilovichi. He has been locally approved for veneration in the Russian Orthodox Church, with feast days on March 17 and September 12.

The Battle on the Ice, also known as the Battle of Lake Peipus, took place on 5 April 1242. It was fought on the frozen Lake Peipus when the united forces of the Republic of Novgorod and Vladimir-Suzdal, led by Prince Alexander Nevsky, emerged victorious against the forces of the Livonian Order and Bishopric of Dorpat, led by Bishop Hermann of Dorpat.

The outcome of the battle has been traditionally interpreted by Russian historiography as significant for the balance of power between Western Catholicism and Eastern Orthodox Christianity. It is disputed whether the battle should be considered a "crusade" or not, and whether it therefore represented a significant defeat for the Catholic forces during the Northern Crusades, thus bringing an end to their campaigns against the Orthodox Novgorod Republic and other Rus' territories. Estonian historian Anti Selart asserts that the crusades were not an attempt to conquer Rus', but still constituted an attack on the territory of Novgorod and its interests.

Andrey III Alexandrovich (ca. 1255 – 27 July 1304), a Rus’ prince, son of Alexander Nevsky, received from his father the town of Gorodets on the Volga. In 1276 he added Kostroma to his possessions and joined the struggle for the Grand Duchy of Vladimir-Suzdal.

In 1281, joining the Mongol army, Andrey expelled his elder brother Dmitri from Vladimir. After some feasting with Mongols in Vladimir, Andrey went to Novgorod, where the populace made him heartily welcome. Meanwhile, his brother allied himself with the powerful Mongol general Nogai Khan, who reinstated Dmitry as Grand Duke of Vladimir in 1283.