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Dewis pwnc arall neu clirio pob hidlydd.
Rhyddhawyd ar: 31 January 2019 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 11 June 2024 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 5 February 2024 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 27 February 2015 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 2 October 2018 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 5 September 2016 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 27 January 2016 | Gwybodaeth gorfforaethol
Current names and codes for a wide range of geographies in the UK, including administrative, electoral, health, international and statistical geographies.
Rhyddhawyd ar: 15 October 2025 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 13 February 2015 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 20 September 2019 | Gwybodaeth gorfforaethol
