From the data compiled and sent by CAPTAIN ROBERT THEW (333-+-1987), we learn that the 4th largest ship ever sunk by submarine was the 31,100 ton Royal Navy battleship HMS BARHAM. She was sunk in the Mediterranean on 25 November, 1941 by U-331 under von TIESSENHAUSEN (268-1987).

This was a particularly devastating loss, as the battleship rolled over almost immediately while still making headway, thus trapping almost her entire crew below decks. Within mere moments after she was hit and rolled over, HMS BARHAM suffered a violent explosion as her magazines went. Almost the entire ship's company was lost.

This was the only battleship sunk by the U-Bootwaffe ON THE HIGH SEAS during World War II.

For KTB #114 next month - what was the 3rd largest ship ever sunk by a submarine?