This cover from Portugal depicts a complete set issued in 2012, celebrating the Historic City of Guimarães. Guimarães is a city and municipality located in northern Portugal, in the district of Braga. Its historic town centre is listed as UNESCO World Heritage Site since 2001, in recognition for being an "exceptionally well-preserved and authentic example of the evolution of a medieval settlement into a modern town" in Europe. The city was settled in the 9th century, at which time it was called Vimaranes. This denomination might have had its origin in the warrior Vímara Peres, who chose this area as the main government seat for the County of Portugal which he conquered for the Kingdom of Galicia. Guimarães has a significant historical importance due to the role it played in the foundation of Portugal. The city is often referred to as the "birthplace of Portugal" or "the cradle city" (Cidade Berço in Portuguese) because it is widely believed that Portugal's first King, Afonso Henriques, was born there, and also due to the fact that the Battle of São Mamede – which is considered the seminal event for the foundation of the Kingdom of Portugal – was fought in the vicinity of the city.
