Prince Joseph, the nephew of Stanislaus, the last king of Poland, was born at Warsaw in 1763, and was trained to the profession of arms in the Austrian service. His life from early manhood was consecrated to the cause of national liberty. In 1792 he led the Polish troops against the Russians; in 1794 he fought for freedom under the banners of Kosciusko; and on the defeat of his cause he went into exile, refusing to come to terms with the oppressors of his country. The arrival of Napoleon in Warsaw brought him once more into the field of patriotic action. Identifying the cause of his country with that of the great conqueror and deposer of kings, he devoted himself henceforth to the service of the French emperor. The command of the fifth corps of the "grand army" was entrusted to him in the fatal invasion of Russia; he gained fresh laurels on several fields during the campaign of 1813;