period Patrikas, the overlord of the Korela district, was their patron. In 1391 the pirates sacked both Zhukotin and Kazan. With Muscovy's power on the ascendant, however, Novgorod Republic was pressed into putting down their filibustering activities in the first decades of the 15th century. References Further reading 14th century in Europe Medieval pirates Novgorod Republic River and lake piracy Russian pirates Viking warriors