Brummer (ship) explained

Several naval ships of Germany were named Brummer after the blow-fly:

• : an armoured gunboat
• (1915): a 4,400-ton mine-laying cruiser
• : an auxiliary gunnery training ship, launched 29 May 1935, commissioned 8 February 1936, sunk 15 April 1940
• : a minelayer, former Norwegian, captured 9 April 1940