WHistoric counties of Wales
WAnglesey
WBrecknockshire
WCaernarfonshire
WCeredigion
WCarmarthenshire
WCeredigion
WCounties (Detached Parts) Act 1844
WDenbighshire (historic)
WFlintshire (historic)
WGlamorgan
WMerionethshire
WMonmouthshire (historic)
WMontgomeryshire
WParliamentary Boundaries Act 1832
WPembrokeshire
WRadnorshire