A place in the town of Grandmother’s Burying Ground, Seto City, Aichi Prefecture, Japan. It is also called “Ubagafukoro” or “Ubaganofukoro. It is surrounded by hills on three sides and faces the sun on the front, hence the name. It is said that the founder of Seto, Fujishiro, first discovered the clay here and decided to settle permanently in Seto. The clay is gray in color, has strong viscosity, and is deeply veined.
In other words, it belongs to the good quality of later Mokubushi. When Yoshinao, the founder of the feudal domain, built the Omukai Kiln in Nagoya Castle in August 1616, the original clay was exclusively adopted from the Omukai Kiln. Then, during the reign of Mitsutomo II, this clay was mined from the imperial kiln and stored in a warehouse, and a fence was erected at the site to prohibit private use of the kiln. This is why some of the products made by Omamaiyaki are inscribed with the name “grandmother’s pocket. It is not clear whether it was at Grandmother Kaigai in Seto or at the kiln in the “unbaga fukoro” area in Kukuri Village, Kani County, Mino Province (Kani Town, Kani County, Gifu Prefecture) that Grandmother Kaigai tea containers were fired.
