Original: Uesugi Harunori was a Japanese daimyo, the 9th head of the Yonezawa domain (today's Yonezawa and Okitama region), and a descendant of Fujiwara no Yoshikado.
Simplified: He was the 9th leader of the Yonezawa domain. This domain the area that today is the Yonezawa and Okitama region.