高田藩
After Matsudaira Mitsumichi's suicide in 1674, Masaaki became "daimyō" of Fukui, changing his name to Matsudaira Masachika. A succession dispute immediately arose, splitting the retainers of the domain into three factions, Mitsumichi had a biological son, Matsudaira Naokata, who had been born to a concubine, but who would normally have been considered heir. However, his succession was vehemently opposed by Matsudaira Mitsunaga, "daimyō" of Takada Domain and the father of Mitsumichi's legitimate wife, Kunihime. Masachika also had an elder half-brother, Matsudaira Masakatsu, who was "daimyō" of the larger Echizen-Matsuoka Domain, and who thus had a stronger claim. However, Mitsumichi had left a written will stating that Masachika was to be heir. The issue was settled when the "karō" Ashida Zushō produced Mitsumichi's will and submitted it to the shogunate for its mediation. The shogunate ruled that Masachika was to be heir. At this time, Yoshi Domain was terminated, and its territory reabsorbed into the main Fukui landholdings.