Berke

...The founder of the state, Batu (reigned 1227-55), was Jochi's second son. Between 1236 and 1241, he swept across the Kipchak steppe, Russia, and Eastern Europe, and established the foundations of the state with Sarai on the lower Volga as its center. At that time, his eldest brother Orda and others inherited Jochi's main territory (the Irtysh basin) and became the left wing of the state, while Batu, who succeeded to the khanship, occupied territories on the right wing along with his brothers Berke and Shiban. In later historical sources, the territories on the left wing are sometimes called Kök Orda, the Blue Lantern Khanate, and the right wing Aq Orda, the White Lantern Khanate. ...

*Some of the terminology references "Berke" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…国家の創設者バトゥ(在位1227‐55)はジュチの第2子で，1236‐41年に，キプチャク草原，ロシア，東欧を席巻し，ボルガ下流のサライを中心として国家の基礎を築いた。その際，長兄オルダOrdaらがジュチの本領(イルティシュ流域)を継いで国家の左翼となり，ハーン位を継承したバトゥは，弟のベルケBerkeやシバンShibanらとともに，右翼に所領を占めた。後の史料では，左翼の所領を青帳ハーン国Kök Orda，右翼を白帳ハーン国Aq Ordaと呼ぶこともある。…

※「Berke」について言及している用語解説の一部を掲載しています。

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