Iwakitaira Domain

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The Iwakitaira Domain (磐城平藩 Iwakitaira-han?) was a Japanese domain of the Tokugawa period.[1] It is located in southern Mutsu Province, southern Hamadōri of present day. This domain is also called as the Iwakidaira Domain. The capital was Iwakitaira, pre-Sekigahara Iinodaira, present-day Iwaki City.


Before the battle of Sekigahara, southern Hamadōri was ruled by the Iwaki clan (岩城氏 Iwaki-shi?), its base was Iinodaira (飯野平 Iinodaira?). After the battle of Sekigahara, the Iwaki clan was banished to Kameda (present-day northern part of Yurihonjō), the former realm of the Iwaki clan was given to Torii Tadamasa. Tadamasa hated the Iwaki clan because of the hostility to the Tokugawa clan, renamed Iinodaira to Iwakitaira (磐城平 Iwakitaira?) with changing the character of "Iwa" from "岩" to "磐".

From the foundation to the dissolution, rulers were friends of the Tokugawa clan. The last rulers were of the Andō clan.[1] The original role of the Iwakitaira Domain was the guarding to the Date clan whose base was Sendai.

The another name of the Iwakitaira Castle is the Dragon Castle (竜ヶ城 Ryūgajō?), it was called that "A famous site of Iwakitaira is the three-storied tower which stands afloat on the dragon's moat.".

Southern neighbor was the Mito Domain which was ruled by the Mito Tokugawa clan, it played the same role of the Iwakitaira Domain. Northern neighbor was the Nakamura Domain which was ruled by the Sōma clan.

The han school was the Shiseidō (施政堂), it was founded by the Andō clan. The most famous culture created in the Iwakitaira Domain is the Jangara Nembutsu dance.

In the Boshin War, the Iwakitaira Domain joined the Ōuetsu Domains Alliance. But, the Iwakitaira was captured and burnt by the Meiji government troops.

List of lords[edit]

  1. Tadamasa
  1. Masanaga
  2. Tadaoki
  3. Yoshimune
  4. Yoshitaka
  5. Yoshishige
  6. Masaki
  1. Masatsune
  1. Nobunari
  2. Nobukiyo
  3. Nobuyoshi
  4. Nobuyori
  5. Nobumasa[1]
  6. Nobutami
  7. Nobutake

See also[edit]


Map of Japan, 1789 -- the Han system affected cartography


  • 磐城平藩
  • Sasaki Suguru (2004). Boshin Sensō 戊辰戦争. Tokyo: Chuokōron-shinsha.