When in 1736 Khan Feta Ghirai was driven by the Russians from Bakhchi-sarai he settled at Karasu-Bazar, but next year the town was captured, plundered and burned by the Russians.
At that period the first Afghan War was at its height, and in crossing over from Persia through Afghanistan the Aga Khan found opportunities of rendering valuable services to the British army, and thus cast in his lot for ever with the British.
The descendants of Husain Khan have retained the title but now govern only the Pushtkuh Lurs, to whom only the denomination of Feili is at present applied.
On the death of the grandson of Jenghiz Khan Mer y was included (1380) in the possessions of Timur-iLeng (Tamerlane), Mongol prince of Samarkand.
The khan made a vigorous defence; and, after the royal troops had been foiled in their attempts to take the city by storm or surprise, a negotiation was proposed by the king which terminated in a treaty of peace.
Lutf All Khan bad not been many months on the throne when Aga Mahommed advanced to attack him, and invested the city of Shiraz, but retreated soon afterwards to Teheran, which he had made the capital of his dominions.
On arrival at the supreme Mongol court - either that on the Imyl river (near Lake Ala-kul and the present Russo-Chinese frontier in the Altai), or more probably at or near Karakorum itself, south-west of Lake Baikal - Andrew found Kuyuk Khan dead, poisoned, as the envoy supposed, by Batu's agents.
For this decision there were good reasons, for those turbulent sons of the steppe paid no taxes and were much given to brigandage, and their raiding propensities occasionally created international difficulties with the khan of the Crimea and the sultan of Turkey.
In 1845 the town was held for a time by the Kurd chief Khan Mahmud, who eventually surrendered and was exiled.
Finally, the khan was deposed, and his son Mir Mahmud Khan succeeded in November 1893.