Hywel Dda hŭ´wəl ᵺä [key], or Howel the Good, d. 950?, king of Wales. He brought much of Wales under a single rule and is credited with the codification of Welsh laws. The earliest extant texts of the Laws of Hywel Dda date from the 13th cent. and provide evidence of a developing code of law; they are valuable sources for social and legal history.
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