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Oliveira de Frades (Portuguese pronunciation: [oliˈvɐjɾɐ ðɨ ˈfɾaðɨʃ] (listen)) is a municipality in the district Viseu in Portugal. The population in 2011 was 10,261, in an area of 145.35 km².The municipality was created in 1836 by splitting the former municipality Lafões into the current municipalities of Oliveira de Frades, Sao Pedro do Sul and Vouzela.