Cathedral of St. Mary the Great

15th-century Gothic-Manueline cathedral at the heart of the old town

The Cathedral of St. Mary the Great — Sé de Viana do Castelo — anchors the Praça da República and has been the religious centre of the city since the 15th century. The facade blends Gothic solidity with early Manueline decoration, and the rose window above the entrance is a fine example of the distinctly Portuguese late-Gothic style that emerged at the height of the Age of Discoveries.

Inside, the nave is austere by Iberian standards, with the main decoration concentrated in the side chapels. The sacristy holds some good 18th-century azulejo panels depicting biblical scenes. The cathedral stands just steps from the Misericórdia church and the old town hall, making this corner of the Praça da República the densest concentration of historic architecture in northern Portugal outside Braga.

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A story
The cathedral's construction began in 1400 and the building shows the full transition from Gothic to Manueline in a single structure: the main portal is late Gothic, while the interior rose window and side chapels mix in the distinctly Portuguese maritime decoration that characterises Manueline work. Two towers flank the entrance — one was finished, one was not, and the asymmetry has been there for five centuries.