In 1590 Kuchum raided the Tatars around Tobolsk who were paying yasak to the Russians. In 1591 Koltsov caught Kuchum on the Ishym River and captured two of his wives and his son Abdul-Khair who was later given estates in Russia. In 1594 the fort at Tara was built in part to control Kuchum who was in the area. In 1595 Kuchum's followers were raided on the upper Irtysh. In 1597 Kuchum asked for negotiations and the Tsar and Abdul-Khair wrote from Russia offering estates in Russia in return for surrender. Before September 1598 Andrey Voyeykov caught a large group of his followers at a place called Ub Lake and later caught Kuchum on the Ob River. Kuchum fled, but the Russians killed two of his sons and captured five other sons, eight wives and eight daughters. A Muslim cleric was sent to negotiate. Kuchum replied, describing himself as deaf and blind and without subsistence and said that he had not submitted before and would not submit now. This was his last contact with the Russians. He is believed to have died c. 1605 in Bukhara. In 1620 his son Ishim-khan married a daughter of Kho Orluk who was then leading his people from Dzugharia to the Volga.