Matsudaira Munemasa (松平 宗昌, August 14, 1675 – May 19, 1724) was a mid-Edo period Japanese samurai, and the final daimyō of Echizen-Matsuoka Domain and the 9th daimyō of Fukui Domain in Echizen Province of Japan[1] He was a patron of the arts.
[2] Munemasa was born in Matsuoka in 1681 as the third son of Matsudaira Masakatsu of Echizen-Matsuoka Domain and his mother was a concubine.
[3] After being received in formal audience by Shōgun Tokugawa Yoshimune, he changed his name to Munemasa and was granted Senior Fourth Rank, Lower Grade court rank.
Munemasa was already in his 40s when he became daimyō , and although married to an adoptive daughter of Ogasawara Tadataka of Kokura Domain, he had no heir.
This concerned the shogunate greatly, as Fukui Domain had been plagued several times by succession disputes, so at the insistence of the shogunate, he adopted Matsudaira Munenori of the Maebashi-Matsudaira clan as his heir, and married him to a daughter of Matsudaira Yoshikuni.