Lady Island (or Landy Island), 4,500 tons; 25 men.
La Rochefoucauld, French sailing vessel, 2,200 tons; owned in Nantes; 24 men.
Perce, British schooner, 364 tons, owned in Halifax; 6 men, 1 woman.
Pinmore, British sailing vessel, 2,431 tons, owned in Greenock, 29 men.
The Cambronne, which on her arrival at Rio de Janeiro had on board 263 men, had been brought up by the raider on March 7, 1917, in the Atlantic Ocean in latitude 21 south, longitude 7 west, or almost on a straight line with Rio, but twenty-two days east.
During March, 1917, the British Government announced an extension of the danger area in the North Sea, which affected chiefly the protected area off Holland and Denmark. On March 28, 1917, German warships, cruising off the south coast of England, attacked and sank the British patrol boat Mascot.
On April 8, 1917, an engagement occurred between British boats and German destroyers off Zeebrugge on the Belgian coast. One of the German destroyers was sunk and another was seriously damaged.
Various raids were carried out during April, 1917, against the English coast. On April 21, 1917, six German destroyers attempted an attack on Dover. Two of them were sunk by British destroyers. The Germans also claimed to have sunk two British patrol boats. Six days later, on April 27, 1917, another German destroyer squadron attacked Ramsgate, killing two civilians before they were driven off by land batteries. During another engagement a few days later between British light cruisers and destroyers and eleven German destroyers off Holland, one German boat was damaged.
Both Calais and Dunkirk were bombarded by German destroyers. In the former town some civilians were killed. As a result of the attack on Dunkirk one French destroyer was sunk.
On May 10, 1917, a squadron of eleven German destroyers about to sail out of Zeebrugge was attacked by a British naval force and forced back into the former Belgian harbor, then serving as a German naval base. Two days later, May 12, 1917, the same British force assisted by an air squadron successfully attacked Zeebrugge, destroying two submarine sheds and killing sixty-three persons.