Wang Mingzhang was a Chinese general of the National Revolutionary Army during the Second Sino-Japanese War. He commanded the defense of Teng County (14-18 March 1938), part of the Xuzhou Campaign, being killed in action.
However, there are multiple dates for his death. Wikipedia says the 14th; this webpage says the 17th, and this webpage says the 15th.
Exactly which day did he die?