MS Jan Heweliusz disaster
1993 CE.
Shown on the map at 54.600°, 14.217°.
MS Jan Heweliusz sank on 14 January 1993, between about 04:10 and 05:12 (UTC+1) as the ship was crossing the Baltic Sea, en route from Świnoujście, Poland, to Ystad, Sweden. Out of 65 passengers and crew, 56 died in the disaster, making it the largest peacetime maritime disaster in Polish history.
Text from the Wikipedia article Sinking of the MS Jan Heweliusz, licensed CC BY-SA 4.0.