Uesugi Harunori
was a Japanese daimyo. He was the 9th leader of the Yonezawa domain. This domain the area that today is the Yonezawa and Okitama region. Uesugi was born in Edo. He was the second son of a daimyo of the Akizuki clan. His father controlled part of Hyuga province. His mother was a granddaughter of the fourth head of Yonezawa. As a child, he was called "Matsusaburō" (松三郎) and "Naomatsu" (直松). He was adopted by the daimyo of Yonezawa, Uesugi Shigesada. In 1767 he replaced Shigesada as diamyo. After retirement, he began to use the gō, or pen name, Yozan (鷹山).