Strathclyde.

Chambers's Encyclopaedia, Volume 9: Bound to Swansea, p. 763

Strathclyde. In the 8th century the ancient confederacy of the Britons was broken up into the separate divisions of Wales and English and Scottish Cumbria. Scottish Cumbria, otherwise called Strathclyde, thenceforth formed a little kingdom, comprising the country between Clyde and Solway, governed by princes of its own, and having the fortress-town of Aylde or Dunbarton for its capital. Becoming dependent on Scotland (see BRETTS AND SCOTS), it was annexed to Scottish crown at the death of Malcolm I., on failure of the line of native sovereigns. Edgar bequeathed Strathclyde to his youngest brother David, again separating it from the crown of Scotland, which went to his intermediate brother, Alexander I. David held it throughout Alexander's reign in spite of that king's opposition, and on Alexander's death without issue in 1124, it was permanently reunited to the Scottish kingdom under David I.

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