Yú Dàyóu (俞大猷) (1503–1579) was a Chinese general during the Ming Dynasty, best known for the suppression of wokou piracy along China's southeastern coast. Yu was born in Jinjiang, Fujian to a military family and served as regional commander in five border areas of China. In addition to being a strategist, Yú was also a martial artist who specialized in a style of weapon fighting called Jingchu Changjian. General Yu studied martial arts in Shaolin Temple, and later wrote and compiled 正氣堂集 (Zheng Qi Tang Ji), "Compilation of Vital Energy". In his book, is a section called Jianjing ("Sword Classic" or "Sword Treatise") which later became its own martial arts manual.