Mausoleum of Matsudaira Sadamasa
A mausoleum in Iwaidani-higashi-machi, Matsuyama, enshrining Matsudaira Sadamasa (1610–1673), the younger brother of Matsudaira Sadayuki, the first lord of the Matsuyama Domain. Sadamasa was stripped of his domain after becoming a Buddhist monk and thereafter lived in Matsuyama.
The Mausoleum of Matsudaira Sadamasa is a mausoleum located in Iwaidani Higashimachi, Matsuyama City. It enshrines Matsudaira Sadamasa, who was the younger brother of Matsudaira Sadayuki, the first lord of the Matsuyama Domain.
Matsudaira Sadamasa
Matsudaira Sadamasa (1610-1673) was a daimyo of the Mikawa Kariya Domain with 20,000 koku. In 1651 (1651), he was subjected to kaieki (attainder) because he criticized the shogunate government and shaved his head to become a Buddhist priest without permission. His family was entrusted to his older brother Sadayuki, and they lived in Matsuyama thereafter.
Located in the area of Iwaidani, slightly away from the Dogo Onsen town, it is a spot that conveys the history of the Matsudaira clan of the Matsuyama Domain.
Source: "Matsudaira Sadamasa" "Matsudaira Sadayuki" Wikipedia (CC BY-SA) Last confirmed date: July 2026
More spots in North Dogo Area
See all in this area →Dogo Onsen Iwaidani Higashimachi Parking
A municipal parking area open 24 hours a day. The first hour is free for everyone. Capacity is 43 vehicles.

Yamanobe Honten
An outlet of the Yamanobe group of kappo restaurants, in Iwaidani, Matsuyama. It serves omakase kaiseki and lunch kaiseki using seasonal ingredients, and unaju made with domestic eel. It is in an area close to Dogo.

Iwaidani 1-chome Park
A small park ideal for a baby's or toddler's first park outing. It has a sandpit edged with urethane and spring-mounted playground rides shaped like a chick and a rabbit.

Sakagura Yamakei
A liquor shop handling local sake, in Iwaidani, Matsuyama. Sakagura Yamakei is run by Yamamoto Hisao Shoten.
moricafe Iwaidani
A cafe in Iwaidani, Matsuyama. It serves pancakes, waffles and a daily lunch.
Iwaidani Kita Park
A park for local residents in a quiet residential area. It has a combined play structure notable for its circular monkey bars, offering a calm, spacious place for children to play.

Pasteleria Donkihote
A Western confectionery shop in Iwaidani. In business for about 30 years, it is known for its apple pie made with Kogyoku apples.
More "Historic Buildings & Sites" spots
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Yugama Yakushi
A stone yugama in Dogo Park. It is a cylindrical stone object that was once used as a hot spring outlet for Dogo Onsen, and is a Tangible Cultural Property designated by Ehime Prefecture.

Enthronement Commemoration Monument
A monument within Dogo Park. It was erected to celebrate the Gotaiten, the imperial enthronement ceremony, and can be viewed while strolling through the park.

Statue of Masaoka Shiki
A bronze statue of the haiku poet Masaoka Shiki in Hojoen plaza in front of Dogo Onsen Station. In reference to Shiki's love of baseball, he is depicted wearing a baseball uniform.
Mausoleum of Matsudaira Sadayuki
The mausoleum of Matsudaira Sadayuki (1587–1668), the first lord of the Matsuyama Domain, located within the grounds of Joshin-ji Temple. It is a designated historic site of Ehime Prefecture. Sadayuki entered Matsuyama in 1635 (Kan'ei 12) and rebuilt the keep of Matsuyama Castle into three tiers.

Issoan
A hermitage in the grounds of Gyoko-ji Temple in Miyuki, Matsuyama, where the free-verse haiku poet Taneda Santoka spent his last months. The current building was rebuilt in 1952, and a monument with Santoka's haiku stands in the garden.
