Karl Johan Adlercrectz, count, a Swedish soldier, born April 27, 1757, died Aug. 21, 1815. He distinguished himself in the Finnish war against Russia in 1808, as adjutant general of Field Marshal Klingsporr, and on March 13, 1809, joined that officer in arresting Gusta-vus IV. in his own palace. The king was deposed, and the diet on May 1 thanked Adler-creutz and his fellow conspirators for having saved Sweden from ruin by their daring. He was made lieutenant general in 1809 and count in 1814.