It is not known when the Przeclaw Renaissance palace was built. Originally, it was made of wood, and by 1578, belonged to the Ligeza family. In the late 16th century, it was purchased by the Koniecpolski family, which built a new, stone structure. In 1658, the castle was bought by Governor Wladyslaw Rey. The castle remained in the hands of the aristocratic Rey family until its confiscation by the communist regime in 1944. The Rey family had been active during the war in the anti-German underground movement Armia Krajowa and its organisation Tarcza Opieka providing shelter to fugitives, including Jews, and material support to the Polish Resistance. Armia Krajowa members and landowners being persecuted after the war by the communist regime, the Rey family had to go into exile to France. The palace has not been returned to its former owners and is currently a restaurant and a hotel and open to visitors.
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.