I am a heavily armored warship, famed for a duel that impacted naval strategy. Though not exceptionally fast, my firepower was formidable. My name echoes a historical period of conflict. I met my end in the depths, a victim of evolving naval warfare.

1. I am a battleship.
2. My battle was against a ship of similar class, resulting in a draw.
3. My sinking contributed to a shift away from battleships as primary fleet units.
4. My name is associated with a German state.