The new Seebäderschiff Königin Louise
was assigned as an mine layer in August 1914. Since the ship was needed for immediate
actions, the installation of two 8,8 cm guns was cancelled. While being on a mine laying operation on 05.08.1914, the ship was
detected by the British cruiser Amphion
and 16 escorting destroyers and sunk at noon time at the Themse estuary at 51°52'N/02°30'E.
On the way back to its base, the Amphion
run into the mine field just laid by the Königin Louise
and sunk after several mine hits.