Who is the first person to design cheongsam in China

Mr. Yang Chenggui is known as "the first Chinese cheongsam designer", and the cheongsam made for more than 30 Chinese female ministers and mayors at the 1995 World Women's Congress in Beijing was highly praised; he has designed and made cheongsams for Chiang Ching-kuo's wife, Chiang Fang-liang, Japan's Prince Takamatsugu, and the wife of the President of South Korea, among other dignitaries and celebrities. ......

PS: Song Meiling. She had 9000 cheongsams, and she was the one who changed the old style cheongsams into modern ones.