 Complete the following phrase:  The keel for Prinz Eugen was laid down at the Stabilimento Tecnico Triestino shipyard in October 1861. She was launched on 14 June 1862, and after fitting-out work was completed in March 1863, she was commissioned into the Austrian fleet. Owing to her open bow, she took on water excessively and as a result, tended to handle poorly. During the Second Schleswig War in 1864, Prinz Eugen and the two s remained in the Adriatic to protect Austrias coastline while a squadron was sent to the North Sea to attack Denmark. In June 1866, Italy declared war on Austria, as part of the 