Background and career
Denis Urubko (Russian: Дени́с Ви́кторович Уру́бко; 29 July 1973) is a Russian-Polish climber. In 2009, he became the 15th person to climb all 14 eight-thousanders and the 8th person to achieve the feat without supplemental oxygen. During his 25 eight-thousander climbs, he completed the first winter ascents for Makalu and Gasherbrum II, as well as establishing new routes on Cho Oyu, Manaslu, Broad Peak, and Nanga Parbat.
Urubko had Soviet citizenship, but after the dissolution of the Soviet Union he became a citizen of Kazakhstan, but renounced the citizenship in 2012. In 2013, he received Russian citizenship and on 12 February 2015 he received Polish citizenship.
