Yang style tai chi chuan

History
The Yang family first became involved in the study of T'ai Chi in the early 1800s. The founder of the Yang style was Yang Lu-ch'an (楊露禪), aka Yang Fu-k'ui (楊福魁, 1799-1872), who studied under Ch'en Chang-hsing starting in 1820. Yang's subsequent expression of T'ai Chi as a teacher in his own right became known as the Yang style, and directly led to the development of the other three major styles of T'ai Chi (see below). Yang Lu-ch'an (and some would say the art of T'ai Chi Ch'üan in general) came to prominence as a result of his being hired by the Chinese Imperial family to teach T'ai Chi to the elite Palace Battalion of the Imperial Guards in 1850, a position he held until his death.

Yang Lu-ch'an passed his art to:

his second son but oldest son to live to maturity, Yang Pan-hou (楊班侯, 1837-1890), who was also retained as a martial arts instructor by the Chinese Imperial family. Yang Pan-hou became the formal teacher of Wu Ch'uan-yü (Wu Quanyou), a Manchu Banner cavalry officer of the Palace Battalion, even though Yang Lu-ch'an was Wu Ch'uan-yü's first T'ai Chi Ch'uan teacher. Wu Ch'uan-yü's son, Wu Chien-ch'üan (Wu Jianquan), also a Banner officer, became known as the co-founder (along with his father) of the Wu style. Yang Pan-hou is also said to have taught a student named Wang Chiao-Yu. Wang taught Kuo Lien Ying. Kuo's method is called the Kuang P'ing (Guangping) style.
his third son Yang Chien-hou (Jianhou) (1839-1917), who passed it to his sons, Yang Shao-hou (楊少侯, 1862-1930) and Yang Ch'eng-fu (楊澄甫, 1883-1936).
Wu Yu-hsiang (Wu Yuxiang, 武禹襄, 1813-1880) who also developed his own Wu style, which eventually, after three generations, led to the development of Sun style T'ai Chi Ch'uan.
Yang Ch'eng-fu removed the vigorous Fa-jing (發勁 release of power), energetic jumping, stamping, and other abrupt movements to emphasise Ta Chia (大架 large frame style). This style has slow, steady, expansive and soft movements suitable for general practitioners. Thus, Yang Ch'eng-fu is largely responsible for standardizing and popularizing the Yang style T'ai Chi widely practised today. Yang Ch'eng-fu moved to Shanghai in the 1920s, teaching there until the end of his life. His descendants are still teaching in schools associated with their family internationally.

Tung Ying-chieh (Dong Yingjie, 董英杰, 1898-1961), Ch'en Wei-ming (Chen Weiming), Fu Zhongwen (Fu Chung-wen, 1903-1994), Li Yaxuan (李雅轩, 1894-1976) and Cheng Man-ch'ing were famous students of Yang Ch'eng-fu. Each of them taught extensively, founding groups teaching T'ai Chi to this day. Cheng Man-ch'ing, perhaps the most famous outside of China, significantly shortened and simplified the traditional forms Yang taught him after his teacher's passing, supposedly to make them more accessible to larger numbers of students. Although Cheng's modifications are considered controversial by most other schools and are not recognized by the Yang family, Cheng Man-ch'ing was one of several Yang style masters to teach T'ai Chi Ch'üan in the West. Cheng Taught in New York City. He was predated by teachers in Hawaii and San Francisco. His most notable student was Liang Tsung-tsai who was his teaching assistant in Taiwan and later taught in Boston.

Another student of Yang Ch'eng-fu is Jiang Yu Kun (1913-1980).

Other versions of Yang style come from the Yang Shao-hou and Yang Pan-hou lineages. Yang Shao-hou's student Hsiung Yang-ho taught in Taiwan. Hsiung's most famous students who taught in the United States were Liang Tsung-tsai (a.k.a. T.T. Liang) and Tchoung Ta-tchen. The Yang Pan-hou lineage terminates in the Wu Ch'ien Ch'uan style and the Kuang P'ing style. The Kuang P'ing style was taught in San Francisco in the mid 1960's by Kuo Lien Ying.