Who art name was a Chinese general and martial artist best known for countering the "wokou" pirates during the reign of the then known  Empire of the Great Ming?
Yu Dayou Yu Dayou (1503–1579), courtesy name Zhifu, art name Xujiang, was a Chinese general and martial artist best known for countering the "wokou" pirates along China's southeastern coast during the reign of the Jiajing Emperor in the Ming dynasty.
Guo Kan Guo Kan or Kuo K'an (), (1217–1277) was a famous general of Han descent who served the Mongol Khans in their Western conquests and the conquest of China itself. He was descended from a lineage of Chinese generals. Both his father and grandfather had served the Khan, while his forefather Guo Ziyi, a famed general of the Tang Dynasty. He was not a senior Mongol commander but was in charge of Chinese artillery units under the Mongol Empire. He was one of the foreign legions that served the Mongol Empire, and some of the later conquests of the Mongols were done by armies under his command. The biography of this Han commander in the "Yuan Shi" ("History of Yuan") said that Guo Kan's presence struck so much fear in his foes that they called him the "Divine Man".