In recognition for their support to the Chinese, the Kushans (referred to as Da Yuezhi in Chinese sources) requested, but were denied, a Han princess, even though they had sent presents to the Chinese court. In retaliation, they marched on Ban Chao in 90 CE with a force of 70,000 but were defeated by the smaller Chinese force. The Yuezhi retreated and paid tribute to the Chinese Empire. (Later, during the Yuanchu period, 114–120 CE, the Kushans sent a military force to install Chenpan, who had been a hostage among them, as king of Kashgar).