Bow-sim Mark (born 1942) is a Chinese martial arts grandmaster who lives in Newton, Massachusetts, US.
[2] After living for years in Hong Kong, Mark emigrated to Brighton, Massachusetts in 1975, and founded the Chinese Wushu Research Institute in July 1976.
She gave the first demonstration of Combined tai chi in the United States, and published the first description of the technique in 1975.
[2] Mark won a gold medal at the first International Tournament of tai chi in Wuhan City in 1984.
[2] They have two children,[3] a son, martial arts movie star Donnie Yen,[10] and a daughter, Chris Yen, who placed All-round Third division in the First International Wushu tournament in 1986 as the youngest competitor,[11] and who has also joined the film industry.