コーカンド・ハン国
Yakub Beg was born in the town of Pskente, in the Khanate of Kokand (now in Uzbekistan). He rose rapidly through the ranks in the service of the Khanate of Kokand. By the year 1847 he was commander of the fort at Ak-Mechet until its capture by the Russians in 1853. He seems to have left the fort before its fall. Later that year he led an unsuccessful attempt to re-take it. He was involved in the complex factional shifts of the Khanate of Kokand. In 1864 he helped defend Tashkent during the first Russian attack.