Background
Yoshizumi was born in 1637 as the eldest son of Satake Yoshitaka, the 2nd daimyo of Kubota. His mother was the daughter of Satake Yoshiaki, the head of the southern branch of the clan.
佐竹義処
Yoshizumi was born in 1637 as the eldest son of Satake Yoshitaka, the 2nd daimyo of Kubota. His mother was the daughter of Satake Yoshiaki, the head of the southern branch of the clan.
On 12 August 1646, he was presented in formal audience to Shogun Tokugawa Iemitsu, and was awarded lower 4th court rank and the courtesy title of Ukyō-no-daibū. He later gained the honorary titles of Jijū (侍従) and Sakon"e-shōshō (左少将). On the death of his father on 9 February 1672, he became daimyo of Kubota Domain.
During his tenure, he worked very hard to place the domain on sound financial footing, sometimes to the extent of forgetting to take his meals, and occasionally coughing up blood.
However, he died before his reforms became effective. He had at least four daughters.
In 1701, he created two subsidiary domains within Kubota Domain. Yoshizumi died at Yokote Castle in 1703.
His grave is at the clan temple of Tentoku-ji in Akita.