Cleves, duchy of | Encyclopedia.com
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Webviews 2,674,026 updated. duchy of Cleves, former state, W Germany, on both sides of the lower Rhine, bordering on the Netherlands. Cleves was the capital. A county from late Carolingian times, it acquired (late 14th cent.) the county of Mark, in Westphalia, and in 1417 was made a duchy.
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