The Aoyama clan (青山氏, Aoyama-uji) was a Japanese kin group. [1]
The clan claims descent from Fujiwara no Ietada (1062–1136). [1]
The clan's origins were in Kōzuke Province; however, members of the family moved to Mikawa Province and served the Matsudaira clan (later known as the Tokugawa clan). The Aoyama became a daimyō family during the Edo period.
The Aoyama clan held the Sasayama Castle, located at Sasayama, Hyōgo Prefecture, for 123 years during the Edo period. The first Aoyama lordship of the castle started in 1748, and continued until the castle was torn down in 1871. [2]
The Matsudaira clan was a Japanese samurai clan that descended from the Minamoto clan. It originated in and took its name from Matsudaira village, in Mikawa Province. During the Sengoku period, the chieftain of the main line of the Matsudaira clan, Matsudaira Motoyasu became a powerful regional daimyo under Oda Nobunaga and Toyotomi Hideyoshi and changed his name to Tokugawa Ieyasu. He subsequently seized power as the first shōgun of the Tokugawa shogunate which ruled Japan during the Edo period until the Meiji Restoration of 1868. Under the Tokugawa shogunate, many cadet branches of the clan retained the Matsudaira surname, and numerous new branches were formed in the decades after Ieyasu. Some of those branches were also of daimyō status.
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