Rostov-Suzdal Principality (English spelling)

Japanese: ロストフ･スーズダリ公国 - ロストフスーズダリこうこく（英語表記）Rostovo‐Suzdal’skoe knyazhestvo

A principality of medieval Russia that existed in the northeast of Kievan Rus when it was fragmenting. Rostov, then Suzdal, was its center, but in the second half of the 12th century, its capital was moved to Vladimir, and it became known as the Vladimir-Suzdal Principality. As Kievan Rus fell into decline, it became known as the Grand Principality of Vladimir. Moscow was also a town located on the outskirts of this principality. Its territory was vast, stretching from Lake Racha and the Ustia River in the north to the Klyazma and Lopasnya Rivers in the south, and from the Unzha and Yug Rivers in the east to the Tvertsa River in the west.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

中世ロシアの一公国で，キエフ･ロシアが細分状態に陥っていた時代にその北東に存在した。ロストフ，ついでスーズダリがその中心であったが，12世紀後半に都がウラジーミルに移され，ウラジーミル･スーズダリ公国と呼ばれ，キエフが没落していく中でウラジーミル大公国と称した。モスクワもこの公国の辺境に位置する町であった。その領域は，北はラチャ湖，ウスチヤ川から南はクリャジマ川，ロパスニャ川まで，東はウンジャ川，ユグ川から西はトベルツァ川にまで至る広大なものであった。

出典　株式会社平凡社世界大百科事典第２版について　情報

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