Lisbon metropolitan area
The Lisbon metropolitan area, centered in the Portuguese capital city of Lisbon, is the largest population concentration in Portugal. The population in 2011 was 2,821,876, of whom 547,733 (19.4%) live in the city of Lisbon. About 26.7% of the total population of Portugal lives in the Lisbon metropolitan area. The area of the Lisbon metropolitan area is 3,015.24 km, which is 3.3% of the total area of Portugal.
History of Portugal
Portugal traces its national origin to 24 June 1128, the date of the Battle of São Mamede. Afonso proclaimed himself "Prince of Portugal" after this battle and in 1139, he assumed the title "King of Portugal". In 1143, the Kingdom of León recognised him as King of Portugal by the Treaty of Zamora. In 1179, the papal bull Manifestis Probatum of Pope Alexander III officially recognised Afonso I as king. After the Battle of São Mamede, the first capital of Portugal was Guimarães, from which the first king ruled. Later, when Portugal was already officially independent, he ruled from Coimbra.