- Birth: 1835
- Death: 1893
- Titles: Higo no kami, Kyoto Shugo Shoku
- Childhood name: Keinosuke
- Other names: Masane Reishin (Shinto name)
- Japanese: 松平 容保 (Matsudaira Katamori)
On 1862/int.8/1, he was appointed to the position of Kyoto shugo shoku (Military Commissioner of Kyoto) and took 1000 Aizu samurai to Kyoto later that year. While in Kyoto, he made efforts to support the unification of the imperial court and the shogunate (Kôbu gattai) and used the Shinsengumi to maintain public peace.
The Battle of Aizu
- See also Battle of Aizu
Katamori left Kyoto during the Battle of Toba-Fushimi with Shogun Yoshinobu and returned to Aizu. Pro-Imperial troops defeated Tokugawa troops in the Battle of Ueno and headed north several months later. The domains in the northern provinces then allied together against the pro-Imperial troops which were mainly from Satsuma han and Chôshû. However some domains went over to the pro-Imperial side; most ultimately surrendered before Aizu did.
Katamori died of pneumonia in 1893.
- Kyoto Shugoshoku Shimatsu (京都守護職始末) Yamakawa Hiroshi
- Matsudaira Katamori (松平容保) Obigane Mitsutoshi
- Matsudaira Katamori (松平容保) Hoshi Ryoichi
- Haisha kara mita Meijiishin (敗者から見た明治維新) Saotome Mitsugu
- Matsudaira Katamori no Shogai (松平容保の生涯) Kobiyama Rokuro
- Matsudaira Katamori (松平容保) Haji Hideya
- Matsudaira Katamori ha Choteki ni arazu (松平容保は朝敵にあらず) Nakamura Akihiko