Rebrov (Robrov), Ivan Ivanovich (?–1666?)
Rebrov (Robrov), Ivan Ivanovich (?–1666?) – a Cossack lieutenant, Arctic explorer, and navigator. As the head of a group of Cossacks, R. was sent in 1631 from Tobolsk to collect tribute in the lower reaches of the Taz River. Together with the detachment of the land explorer S. Korytov, R. reached Yakutsk via the Lower Tunguska, the Chona, and the Vilyui Rivers in 1632. In the summer of 1633, under the command of I. Perfiliev, R. fell down the Lena River on a koch to its delta and then moved west by the Olenyok River. He discovered the Olenyok Bay and found the mouth of the Olenyok River. He founded winter quarters there, and until the summer of 1637, R. collected fur tributes from the Evenki who lived in the valley. In September, he moved to the River of Yana and joined I. Perfiliev’s detachment. After spending a winter in Verkhoyansk, the Cossacks returned to Lena and went down the river to the sea. By order of I. R. Perfiliev, R. went east. By the autumn of 1638, he completed the discovery of the Yana Bay and was the first who sailed through the Strait of Dmitry Laptev; then he sailed the East Siberian Sea and discovered the mouth of the Indigirka River. R. observed almost 700 km of the Asian coast between the mouths of the Yana and the Indigirka. He sailed up the Indigirka for 600 km and discovered the eastern end of the Yana–Indigirka Lowland. At the inflow of the river of Uyandina, he set a winter camp and collected fur tributes from the Evenks and Yakutsk of Abyisky lowlands for more than 2 years. In the summer of 1641, R. returned to Lena by the same route. He was appointed a governor assistant, and in 1642–1647, he served on the River of Olenyok, in 1649–1654 in the Kolyma. He sailed on koch boats the “Cold Sea” (Laptev and East Siberian Seas) and crossed the Kolyma Lowland on sleds with the state treasury. For more than 30 years of service, R. was five times wounded.