In this Japanese name, the family name is Inawashiro.
Inawashiro Morikuni (猪苗代 盛国 , 1536 - ?) was a Japanese samurai of the Sengoku Period, who served the Date clan. In the Sendai domain's retainer structure, his family was classified as jun ichimon, with an income of 5,000 koku.
The original article can be found at Inawashiro Morikuni and the edit history here.