SMS Konigsberg was the lead ship of her class of light cruisers built by the German Kaiserliche Marine (Imperial Navy). Named after Konigsberg , the capital of East Prussia, she was laid down in January 1905, launched in December of that year and completed by June 1906. Her class included three other ships: Stettin, Stuttgart, and Narnberg. Konigsberg was armed with a main battery of ten 10.5-centimeter (4.1 in) guns and had a top speed of 24.1 knots (44.6 km/h; 27.7 mph). After her commissioning, Konigsberg served with the High Seas Fleet's reconnaissance force. During this period, she frequently escorted Kaiser Wilhelm II's yacht on visits to foreign countries. In April 1914, the ship was sent on what was to have been a two-year deployment to German East Africa, but this was interrupted by the outbreak of World War I in August of that year. Konigsberg initially attempted to raid British and French commercial traffic in the region, but only destroyed one merchant ship in the course of her career. Coal shortages hampered her ability to attack shipping. On 20 September 1914, she surprised and sank the British protected cruiser HMS Pegasus in the Battle of Zanzibar.