The 'Borough of Rhuddlan' was one of six
districts of
Clwyd,
North Wales from
1974 to
1996. It was formed under the
Local Government Act 1972 from part of the
administrative county of
Flintshire, namely the
urban districts of
Prestatyn and
Rhyl and the
rural district of
St Asaph.
The district was named after
Rhuddlan Castle, where the
Statute of Rhuddlan was issued in
1284. This was illustrated in the borough's
coat of arms which showed a castle of the time of
Edward I in the shield, and a Welsh dragon grasping a parchment scroll, representing the statute, as the crest. The borough's motto was ''Rhuddlan Crud Cymru'' or ''Rhuddlan, Cradle of Wales''.
The district was abolished in
1996, with its area forming part of the
Denbighshire unitary authority.