In 1236, the Ilkhanate Mongol armies invaded the Caucasus. Prior to them entering Khachen, Hasan Jalal and his people were able to take refuge at Ishkhanberd (located directly south of Gandzasar; also known by its Persian name of Khokhanaberd). Given its formidable location atop a mountain, the Mongols chose not to besiege the fortress and sued for negotiations with Hasan-Jalal: they exchanged his loyalty and military service to the Mongol Empire in return for some of the immediate lands adjacent to Khachen that they had conquered. Later, in 1240-1242 Hasan Jalal even had struck coins of common Mongol types in Khachen on the mints of "Qarabāgh" (in Khokhanaberd) and "Lajīn" (in Havkakhaghats berd).