Monasterio de Santa María de Villanueva de Oscos was founded in the 12th century as a Benedictine house. The monastic community was closed by the ecclesiastical confiscations of Mendizábal. The church has remained in use as a parish church.
The cartulary preserves 616 parchments about the Middle Ages: 32 from the 12th century, 261 from the 13th century, 224 from the 14th century and 99 from the 15th century.
References:Towering 52 meters above the sea, Bengtskär lighthouse is the tallest one in Scandinavia. The building started in in 1905 after the shipwreck of S/S Helsingfors and was completed in 1906. The lighthouse was designed by architect Florentin Granholm. On December a special petrol lantern, designed and built in Paris, was brought to Bengtskär and installed atop the tower.
German fleet bombarded Bengstkär in the First World War in 1914. Since the Gulf of Finland was heavily mined, it was not until 1919 that the surrounding seas were declared safe for shipping, that the light was lit again.
After the war the military value of Bengtskär increased as part of the defence system of independent Finland. In Second World War (1941) Soviet Union made a suprise attack to island. After a bloody battle, the small Finnish garrison emerged victorious. Intermittent repairs to the facility continued during the post-war period.