Lisbon
Lisbon (; , ) is the capital and the largest city of Portugal, with an estimated population of 505,526 within its administrative limits in an area of 100.05 km. Its urban area extends beyond the city's administrative limits with a population of around 2.8 million people, being the 11th-most populous urban area in the European Union. About 3 million people live in the Lisbon Metropolitan Area (which represents approximately 27% of the country's population). It is mainland Europe's westernmost capital city and the only one along the Atlantic coast. Lisbon lies in the western Iberian Peninsula on the Atlantic Ocean and the River Tagus. The westernmost areas of its metro area form the westernmost point of Continental Europe, which is known as Cabo da Roca, located in the Sintra Mountains.
History of Portugal
At the end of the 11th century, the Burgundian knight Henry became count of Portugal and defended its independence by merging the County of Portugal and the County of Coimbra. Henry's son Afonso Henriques proclaimed himself "Prince of Portugal" on 24 June 1128 and King of Portugal in 1139. In 1179 a papal bull officially recognised Afonso I as king. The Algarve was conquered from the Moors in 1249, and in 1255 Lisbon became the capital. Portugal's land boundaries have remained almost unchanged since the 13th century. The Treaty of Windsor (1386) created an alliance between Portugal and England that remains in effect to this day.