San Miguel das Negradas (officially San Miguel de Negradas) is a civil parish in the municipality of O Vicedo, in the A Mariña Occidental comarca of the Province of Lugo, Galicia, northwestern Spain. It lies on the border with Mañón in the Province of A Coruña, at the mouth of the Sor River where it forms the RÃÂa do Barqueiro. The parish includes the island of San Martiño.
The coastal zone falls within the Costa da Mariña Occidental Natura 2000 protected area. San Miguel das Negradas has lost population steadily over recent decades â the 2025 Padrón recorded 136 residents.
Settlement in the area dates to at least the pre-Roman period. The island of San Martiño preserves the remains of an Iron Age castro (fortified settlement), and the parish also contains a megalithic burial mound known as the Mámoa da Medorra.
During the Middle Ages the parish was home to a community of Benedictine nuns â their monastery disappeared in the 15th century when the community was absorbed into the Convent of San Paio de Antealtares in Santiago de Compostela.
Following the Spanish Constitution of 1812, the territory was organised into three separate municipalities: Negradas, Val, and Cabanas. This lasted only a few years; by 1840 the parishes had been folded into the municipality of Riobarba, renamed O Vicedo in 1952.
The Igrexa de San Miguel de Negradas is a Romanesque structure dating to the 12th and 13th centuries with a Latin cross plan. The church retains a cloister or altarpiece in one transept arm originating from the former Benedictine monastery, which ceased to function locally in the 15th century.
The main altar is divided into three sections; the central one has high reliefs of the patron Saint Michael, while the flanking panels hold oil-on-wood paintings by Juan de Castinande (1853) depicting Saint Peter and Saint Paul. Among the other images inside are Saint Rosendo, the Virgin of the Rosary, Saint Anthony, Saint Roch, Saint Joseph, the Sacred Heart of Jesus, and two further depictions of Saint Michael.
The Casa de Alexos is recorded as a building of local heritage interest.
San Miguel das Negradas occupies the extreme northwestern corner of the Province of Lugo. The western part of the parish runs along the RÃÂa do Barqueiro, the estuary of the Sor River, which marks the boundary between Lugo and A Coruña. The island of San Martiño lies within the parish at the mouth of the Sor. The coastal area is designated as the Costa da Mariña Occidental Natura 2000 Lugar de Interese Comunitario (LIC).
The parish is administratively divided into 21 populated entities (lugares) and three uninhabited places: Alpuxarras, Francos, and O Redondo. The 2025 Padrón recorded 136 residents.
The principal hamlets (lugares) include:
The parish celebrates the feast of Saint Michael on 29 September.