Khan came to Möngke Khan and expressed their obedience, thus declaring a rebellion against Khasi I, afterwhich he sent an army led by his brother Matarsha along with other family members to Maghas in order to help the Mongols in besieging the city. This decision was supported by most of the Dishniy clan, especially Botur's family. The siege The rebellious Dishniy army, led by Matarsha and his relatives, was sent to Maghas in order to help the Mongols in besieging the city. In november of 1239, the siege began. By the start of the siege, Khour I had not arrived from his campaign in Circassia. The inhabitants of “M-k-s”, says Juvaini, “were as numerous as ants and locusts, and the surrounding area was so densely covered with swamps and forests that a snake could not possibly crawl through. The princes together surrounded the city from different sides, and first made a street wide enough for three or four chariots to pass on each side, and then material tools were placed against its walls. According to the Chinese chronicle "Yuan-Shi", Maghas was surrounded by swamps and huge dense forests that "It was difficult for the wind to get through". Because of this, the Mongols cut down the forests and paved roads for the army to get around easier, after which the Mongol army (among whom was Matarsha, whos army was in the vanguard) began the siege. Not long after the siege began, Khour and his army arrived from Circassia. He drove a part of the Mongol army away and fought himself through enemy lines, until he managed to enter the city, after which he fortified himself in there. Despite the support of the Dishniy clan towars Botur's rebellion, there were also many people from the Dishniy clan who opposed Botur, among them being his niece and the wife of Khour I, Esirat, who, during the siege, expected a child. She left the city through a secret passage known as the Bass gorge, and fled to the Cheberloy region, south east Chechnya, where she gave birth to Khour's only son, prince Chakh, sometimes also referred to as Chakhig. The defence of Maghas was fierce. Regularly, there were attmepts to take the city by storm, however, all of them failed. At this point, the siege had been going on for 3 months. In January of 1240, the Mongol commanders Batu Khan, Kadan, Güyük