On March 6 , 1866 , while en route Self_motion from Lota to Montevideo ( and being accompanied by `` Independencia '' pilebot ) with a crew of 7 men , and officer and 126 sailors destined to complete the crews of the Peruvian ironclads `` Huascar '' and `` Independencia '' , it was captured Conquering by the Spanish frigate `` Blanca '' , commanded Control by Juan Bautista Topete .