Maksim Perfilyev

In 1618–19 Perfilyev was co-founder of Yeniseysky ostrog, the first Russian fort at the central part of the great Siberian river Yenisey, a major starting point for further expeditions eastward.

From 1618–27 he made several journeys on the Angara and Ilim rivers, and built several new ostrogs.

In 1639–40 he sailed up the Vitim River as far as the Tsipa thereby becoming the first Russian to enter Transbaikalia, then known as Dauria.

[1] Perfilyev gave his name to the village of Maksimovschina, where on the banks of the Irkut River were his hunting lands.

His son Ivan Maksimovich Perfilyev was also a famous voevoda and diplomat in Siberia.