On January 7, Kotlyarevsky besieged Lankaran, which was being defended by 4,000 soldiers led by
Sadeq Khan Qajar. Kotlyarevsky contacted Sadeq Khan the following day and demanded that he give over the fort. He went on to say that the Russians had defeated Abbas Mirza at Aslanduz and that Fath-Ali Shah (whom he addressed him as Baba Khan instead), was powerless to oppose the Russians. Sadeq Khan was unwilling to give up because Abbas Mirza had instructed him to hold the fort until the very last man. As a result, Kotlyarevsky subsequently gave the order for the ships to launch mortars towards the city. On January 10, the defenders were contacted by Kotlyarevsky, who urged them to surrender to save themselves, their wives and children, and their possessions. He reiterated Abbas Mirza's defeat and also the destruction of the
Arkevan fortress. On January 12, Kotlyarevsky gave the defenders three hours to submit quietly. Having run out of shells, he next gave the order for the troops to charge the city. He had the majority of his troops organized into three
columns, but had his artillery surrounded by two companies from the Georgian Grenadier Regiment to give impression that he intended to launch the main assault from that place. The first column was led by Lieutenant-colonel Ushakov and included six companies from the Georgian Grenadier Regiment; the second column by Major Povalishin and included 297 members of the Caspian Naval Battalion and two companies from the Troitskii Regiment; and the third column by Major Tereshkevich and included 350 members of the Georgian Grenadier and 17th Jäger Regiments. 1,661 soldiers, 59 officers, and 37
military bands made up the entire contingent. A quick ascent of the fort's walls was ordered for the columns at five in the morning, along with a quiet advance and no firing. The Russians were fired upon by the defenders for the following three hours. Numerous officers, including Ushakov, died in the incident. When Kotlyarevsky learned that his Ushakov's troops had remained in the dugout surrounding the fort following his death, he assumed leadership over them. However, he was subsequently wounded three times—one in the cheek—and passed out whilst lying on the bodies of the dead soldiers. Major Abkhazov of the Georgian Grenadiers succeeded in scaling the wall, thus making the Iranian artillery shift their focus. The fort was eventually taken after the second and third columns scaled the walls. During the siege, 3,737 Iranians lost their lives in addition to Sadeq Khan and ten other
khans. On the Russian side 325 soldiers and 16 officers were killed, whilst 584 soldiers and 25 officers were wounded. Kotlyarevsky was found injured amid the corpses and received medical attention. The silver mace of Sadeq Khan, two banners, eight artillery pieces, an enormous amount of supplies and ammunition were all taken by the Russians. == Aftermath ==