Its southern limits, in the Pamirs, were fixed by an Anglo-Russian commission in 1885, from Zorkul (Victoria Lake) to the Chinese frontier; and Khignan, Roshan and Wakhan were assigned to Afghanistan in exchange for part of Darvaz (on the left bank of the Panj), which was given to Bukhara.
Zgradil je citadelo in središče prenesel v mesto Kokand.