SMS Prinz Eitel Friedrich, a Mackensen-class battlecruiser, was named after one of the sons of Kaiser Wilhelm II. When World War I ended, the battleship had still not been completed due to a shift in priorities toward submarines. She was launched only in March 1920 in an unfinished state. It was suggested to convert the ship into a grain carrier: In that case, she could have been completed as a battleship in the 1930s. However, the proposal was declined, and the ships hull was dismantled in 1921.