|Otto of Arguel|
• Becomes Protectorate of Biel/Bienne
Erguël is an medieval seigniory of the Roman Catholic Diocese of Basel, and under protectorate of Biel/Bienne, under military jurisdiction from 1335, in the now called valley of St.-Imier, in the now Bernese Jura, Switzerland
The Sire of the area used to live in the Château d'Erguel.
In 1264, the Bishop of Basel appointed Otto of Erguel as the vogt over the Saint-Imier valley fief. Otto raised the valley to become a seigniory and parish of the Diocese of Basel, named Erguel.
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