In 1602 Jan Karol Chodkiewicz built the first wooden church in Kretinga and established a Benedictine monastery, which became a great success. After about ten years a new brick church with an impressive organ was built. In 1610 a church school was opened. In 1621 the Sapieha family gained control of the city; they changed its coat of arms to represent Saint Casimir. In 1659 and 1710 the church and monastery were destroyed by Swedish armies. The Sapieha family helped to rebuild and improve it.
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.