Note 76b — Chapter X · TYWY RIVER—CAERMARDYN—MONASTERY OF ALBELANDE
Reading edition
Daugleddeu, so called from Dau, two, and Cled, or Cleddau, a sword. The rivers Cledheu have their source in the Prescelly mountain, unite their streams below Haverfordwest, and run into Milford Haven, which in Welsh is called Aberdaugleddau, or the confluence of the two rivers Cledheu.