The Battle of Lake Peipus (The Battle of the Ice)
The battle between the Livonian branch of the Teutonic Knights and the Novgorod Republic was fought mostly on the icy lake in 1242.
Hoping to exploit the Russians’ weakness in the wake of the Mongol and Swedish invasions, the Teutonic Knights attacked the neighboring Novgorod Republic. The Battle of Lake Peipus was a significant defeat sustained by Roman Catholic crusaders during the Northern Crusades against pagans and Eastern Orthodox Christians. The crusaders’ defeat in the battle marked the end of their campaigns against the Orthodox Novgorod Republic and other Russian territories for the next century.