Prince Charles has unveiled a plaque at the restored and renamed Redhouse Town Hall in Merthyr Tydfil.
He told onlookers he is "very impressed" with the building.
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Clear skies overnight will allow temperatures to drop away. It won't be as cold as last night but a frost is possible in rural areas.
Eight members of a multi-million pounds drug gang operating out of Cardiff have been jailed for a combined total of 54 years.
Ex-convict could have been suffering from drug-induced "excited delirium" when he attacked and killed a young woman, an inquest has heard.