Zhang Xueliang or Chang Hsüeh-liang (3 June 1901 (according to other accounts in 1898 or 1900) in Haicheng County, Fengtian province of China – 14 October 2001 in Honolulu, Hawaii, United States), nicknamed the "Young Marshal" (少帥), became the effective ruler of Manchuria and much of North China after the assassination of his father Zhang Zuolin by the Japanese on 4 June 1928. Wikipedia
The definitive Wikipedia entry for Zhang Xueliang. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Zhang_Xueliang
The oral interviews conducted with General Zhang Xueliang from 1991-1993 as currently transcribed in Chinese come to 4837 handwritten one-sided pages. ... www.columbia.edu/cu/lweb/indiv/oral/zhangII.html
Britannica online encyclopedia article on Chang Hsueh-liang: Chinese warlord who, in the Sian Incident (1936), compelled the Nationalist leader Chiang ... www.britannica.com/eb/article-9022416/Chang-Hsueh-liang