Строгановы
Although his long Livonian War for control of the Baltic coast and access to the sea trade ultimately proved a costly failure, Ivan managed to annex the Khanates of Kazan, Astrakhan, and Siberia. These conquests complicated the migration of aggressive nomadic hordes from Asia to Europe via the Volga and Urals. Through these conquests, Russia acquired a significant Muslim Tatar population and emerged as a multiethnic and multiconfessional state. Also around this period, the mercantile Stroganov family established a firm foothold in the Urals and recruited Russian Cossacks to colonise Siberia.