was the 2nd daimyà  of Kuroishi Domain, and later the 11th daimyà  of Hirosaki Domain in northern Mutsu Province, Honshà «, Japan (modern-day Aomori Prefecture). His courtesy title was à Âsumi-no-kami, and his Court rank was Junior Fourth Rank, Lower Grade.
Tsugaru Yukitsugu was born as Matsudaira Yukinori, the 5th son of Matsudaira Nobuakira, the daimyà  of Yoshida Domain in Mikawa Province. He was adopted on June 5, 1821, as the heir to Tsugaru Chikatari, the daimyà  of Kuroishi Domain. On his adoptive fatherâÂÂs retirement, as Tsugaru Yukinori, he became the 2nd daimyà  of Kuroishi Domain from 1825 to 1839. He was known as an intelligent ruler, and worked for the restoration of the domain's finances during the political and agricultural crisis of the Tenpà  era. After the Tokugawa shogunate forced Tsugaru Nobuyuki of Hirosaki Domain into retirement over allegations of gross misrule, Yukinori was ordered to change his name to Tsugaru Yukitsugu and to take his place as the 11th daimyà  of Hirosaki. He turned the rule of Kuroishi Domain over to his brother, Tsugaru Tsuguyasu.
Yukitsugu brought in the noted Confucian scholar Satà  Issai as an advisor and attempted to continue implementation many of the reforms initiated by Tsugaru Nobuakira to restore prosperity to the disaster-prone domain, expanding on NobuakiraâÂÂs code of ethics from five articles to thirty in an attempt to rein in his unruly retainers. In addition to expanding the domain's agricultural land through opening of new paddy fields, Yukitsugu also established a foundry for the casting of cannons, and attempted to modernize the domain's military and medical levels through the introduction of rangaku studies. In 1855, the domain was ordered to assist in the defences of Ezo, and established a military outpost of what the now the city of Wakkanai.
In 1859 Yukitsugu turned the reign over to his adopted son, Tsugaru Tsuguakira, and retired to pursue studies in literature and waka poetry. He died at the clan's Edo residence in 1865. His grave is at the clan temple of Shinryà Â-in (a subsidiary of Kan'ei-ji) in Taità Â-ku, Tokyo.
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