- Titles: Echizen no kami
- Other Names: 松平慶永 (Matsudaira Keiei, Matsudaira Yoshinaga)
- Japanese: 松平春嶽 (Matsudaira Shungaku)
He adopted a daughter of Matsudaira Naoharu (lord of Itoigawa han) named Makoto, and married her to Tairô Abe Masahiro in 1853. Shungaku was forced into retirement and house arrest in 1858 as part of the Ansei Purges; the shogunate designated Matsudaira Naokiyo, lord of Itoigawa han, to become his successor.
In 1862, Shungaku received a document containing "three emergency measures" from Kiyokawa Hachirô. He then formed the Rôshigumi, hiring a group of ronin to help guard Shogun Tokugawa Iemochi on a 1863 trip to Kyoto. In conjunction with these responsibilities, Shungaku was named seiji sôsaishoku, a high-ranking government oversight position.
Shungaku is known to have been an avid collector of ukiyo-e woodblock prints, and it has been suggested that the production of pictorial records of Iemochi's trip to Kyoto by ukiyo-e artists rather than by those of the Kanô school may have been his idea.
In the last years of the Bakumatsu period, Shungaku, along with Yamauchi Yôdô, were among those who debated the possibility of a more democratic form of government, based on public opinion.
- Ishin Shiryô Kôyô 維新史料綱要, vol 1 (1937), 402.
- Ishin Shiryô Kôyô 維新史料綱要, vol 3 (1937), 5.
- Daniele Lauro, "Displaying authority: Guns, political legitimacy, and martial pageantry in Tokugawa Japan, 1600 - 1868," MA Thesis, University of North Carolina, Chapel Hill (2013), 31-32.
- Tokugawa Reiten Roku 徳川禮典録, vol 1., Tokyo: Owari Tokugawa Reimeikai (1942), 1-2.