The Germans started WW2 with 6 battleships. One, the Graf Spee was damaged and scuttled in the second month of war.
The ship was the Admiral Graf Spee. It was scuttled by the Germans. The incident is commonly known as the Battle of the River Plate.
The first major German warship sunk in WW2 was the "pocket battleship" Admiral Graf Spee, scuttled by her crew outside Montevideo, Uruguay on 17 December 1939.
"Graf Spee" translates to "Count Spee" in English. The term is often associated with the German cruiser SMS Graf Spee, named after the German admiral Maximilian von Spee. The name reflects a noble title, with "Graf" meaning count, a rank in the nobility, and "Spee" being the surname.
German cruiser Admiral Graf Spee was created on 1936-01-06.
You are describing the Graf Spee, but it was not "sunk" in the common use of the word, (that is, by an enemy ship) it was scuttled by her own captain.
Battlecruiser DKM Schornhorst (actually went down fighting). Bismarck and Graf Spee both committed suicide (sunk themselves/scuttled).
Bismarck scuttled itself (sunk itself). Graf Spee scuttled itself (sunk itself). It's Captain also committed suicide, shot himself.
Graf Spee
Clement
Admiral Graf Spee
The German battleship Graf Spee was involved in the Battle of the River Plate in December 1939, where it faced British warships. After sustaining damage and realizing it was outmatched, Captain Hans Langsdorff ordered the ship to be scuttled in Montevideo, Uruguay, on December 17, 1939, to prevent its capture. The crew safely evacuated, and the sinking marked a significant early naval engagement in World War II.