Angra do Heroísmo, generally known as Angra, is the largest community on the island of Terceira in the Portuguese autonomous region of the Azores. The population in 2011 was 35,402. The municipal extent of the town encompasses the southern half of Terceira, with the north belonging to Praia da Vitória. Together with Ponta Delgada on São Miguel and Horta on Faial, Angra is one of the three regional capitals of the Azores. Each capital is responsible for one of the three branches of government, and Angra do Heroísmo is the executive capital. The town is also the location of the Azorean bishop.
The community was established in the latter half of the 15th century. Angra served as a place of exile for Almeida Garrett during the Napoleonic Wars. It also served as a refuge for Queen Maria II of Portugal from 1830 to 1833. It was classified as a World Heritage site by UNESCO in 1983.
Information from:
en.wikipedia.org/wiki/Angra_do_Hero%C3%ADsmo 