Elvas - Porta Sul

Elvas is among the finest examples of intensive usage of the trace italienne (star fort) in military architecture, and has been a World Heritage Site since 30 June 2012. The inscribed site name is Garrison Border Town of Elvas and its Fortifications.It was wrested from the Moors by Afonso I of Portugal in 1166 but was temporarily recaptured before its final occupation by the Portuguese in 1226. The late Gothic Our Lady of the Assumption Cathedral, which has many traces of Moorish influence in its architecture, dates from the reign of Manuel I of Portugal (1495–1521).
Junot took it in March 1808 during the Peninsular War, but evacuated it in August after the conclusion of the Convention of Sintra. The fortress of Campo Maior 15 kilometres (9.3 mi) to the northeast is known for its Napoleonic era siege by the French and relief by the British under Marshal Beresford in 1811, an exploit commemorated in a ballad by Sir Walter Scott.