Career
After 1638) was a Cossack explorer of Eastern Siberia and the first Russian to reach Transbaikalia. He was renowned for his diplomatic skills in negotiations with Tunguses, Mongols and Chinese. In 1618-1627 he made several journeys on the Angara and Ilim rivers, and built several new ostrogs.
In 1631 he founded Bratsky ostrog (modern Bratsk).
In 1639-1640 he sailed up the Vitim River as far as the Tsipa thereby becoming the first Russian to enter Transbaikalia, then known as Dauria. Perfilyev gave his name to the village of Maksimovschina, where on the banks of the Irkut River were his hunting lands.
Maksimikha Bay on Lake Baikal (part of the larger Barguzin Bay) and Cape Maksimin in that bay, as well as the nearby Maksimikha village are also named after him.
