was shot in Sidemi on 9 March 1886 and sent to Ladislaus Taczanowski who described the species in 1888.|255x255px Jankowski was the son of Jan and Elżbieta of Więckowski, born in
Złotoria, and came from the nobility of the Novina clan who claimed descent from the
knight Tadeusz Novina who fought in
the Crusades. He grew up in
Złotoria and
Tykocin and then went to study at the agricultural university in Hory-Horki near
Mogilev. He took part in the
January Uprising of 1863 and was captured by the Russians, and sent to Siberia. The prisoners travelled on foot from
Smolensk to Siberia. Near Siwakowa near Czyta, he met the fellow Polish zoologist
Benedict Dybowski. His sentence was shortened and ended in 1868 after which he applied and received permission to settle in Badajsk in the
Irkutsk region. Here he worked in a gold mine from November 1868. In 1872-74 he helped Benedict Dybowski and
Viktor Godlewski and joined them on an expedition, providing the team with a boat and learned to prepare specimens from Dybowski. They travelled along the
Amur River to the mouth of the
Ussuri River. From 1874, Jankowski managed a gold mine owned by Captain
Fridolf Heck on the island of Askold near Vladivostok and in 1877 he established a meteorological station on the island. He married the widow of a soldier on the island, and in 1876 their son Alexander was born but the mother died. Unable to care for the child, he sought a woman, choosing from among several other brides just by examining a set of photographs. He then visited Olga Kuzniecowa who belonged to a
Buryat Kurtuk family and she agreed to the marriage. The couple adopted an orphan boy Andrei Agranat on the island of Askold and then also had their own children Elżbieta (born 1878) and
Jerzy (born 1879) (Anglicized as George, and Yuri in Russian). He later purchased 550 hectares on the Sidemi peninsula where the family moved to in 1880. The area is now known as the Yankovsky Peninsula. His children Anna (1884), Jan (1886), Sergei (1888) and Paweł (1890) were born there. Jankowski build a strong house as a defence against future attacks, managed orchards, began ginseng plantations, and maintained herds of
sika deer (maintained for their
velvet antlers which were much sought after in China and Korea) apart from breeding horses. He collected natural history specimens which he sent to Russian and European museums, earning a good income from them. In 1889 he sponsored part of the museum in Vladivostok, now named after
Vladimir Arsenyev, and also contributed specimens to it. His sons
Yuri ("George") and Alexander also helped in collecting natural history specimens. Yuri and Alexander were also sent to the United States where Yuri studied horse management on Texan farms. They returned with English thoroughbreds aboard a ship from San Francisco. Alexander took an interest in construction, and led a collecting expedition for
Vladimir Leontyevich Komarov. Jankowski's horses, bred for a variety of purposes, were used in the cavalry, won races, and pulled plough-shares. He later built leather factories, began a bookstore, and moved to Vladivostok in 1905. During the
Russo-Japanese War, he commanded a defence unit. In 1909 he suffered from severe pneumonia and was treated at
Semipałatyn and later at
Sochi where he lived until his death in 1912. The estate was managed by Yuri after his death. == Family escape to Korea ==