Bardulia

…Its origins lie in the Villarcallo area on the upper reaches of the Ebro River, which formed the eastern frontier of the Kingdom of Asturias and Leon and was a constant battlefield against the Al-Andalus armies invading along the river. For this reason, numerous fortresses, or castellas, were built as early as the 8th century, which came to characterize the landscape and eventually replaced the traditional name Bardulia. The inhabitants were mainly native mountain peoples who had been weakly influenced by the civilization of the former Roman Empire, and many were Basques. …

*Some of the terminology that mentions "Bardulia" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…その発祥地はエブロ川上流のビリャルカージョ一帯で，ここはアストゥリアス･レオン王国の東の辺境をなし，同川に沿って侵攻してくるアル･アンダルス軍との不断の戦場だった。このために8世紀の間に早くもその景観を特徴づけるほど多くの城塞，すなわちカステラcastellaが築かれ，これがやがて地名として従来のバルドゥリアBarduliaに取って代わった。　住民はかつてのローマ帝国期の文明化の影響が微弱な山岳部原住民が主で，バスク人も多かった。…

※「Bardulia」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