贾似道
The Song Emperor Duzong died in 1274, and his three-year-old son Zhao Xian became the Emperor Gongdi (reigned 1274–1276). The Mongols sent Shi Tianze and Bayan on a full-scale campaign against the Song. Shi Tianze died en route. Bayan ordered that Aju head the first column and depart for the Yangtze from Xiangyang, with Lu Wenhuan as fore-runner general; the second column headed by Mang-wu would depart from Yangzhou, with Liu Zheng as forerunner general. Bayan took numerous cities on his march, slaughtered the inhabitants of one town, and killed and captured numerous Song generals. The Song regent and Grand Empress Dowager Xie had no choice but to rely on Jia Sidao for fighting the Mongols. More Song generals surrendered, including Fan Wenhu in Sichuan and Chen Yi in Huangzhou (Huanggang area, Hubei). Hearing that Liu Zheng had died, Jia Sidao experienced a brief ecstasy and led an army of about 130,000 against the Mongols, but he suffered defeat on the Yangtze River. The populace of the Jiangsu areas, around the Yangtze, including Zhenjiang and Jiangyin, deserted their homes in the face of the Mongol attacks. Jia Sidao sent an emissary to Bayan to discuss a truce, but Bayan declined to negotiate. Jia Sidao asked the dowager empress to relocate the Song capital, Hangzhou, but Empress Xie-shi refused to move.