Composer, diplomat, and politician known for his 20 polonaises. He offered as the Lithuanian Grand Treasurer and proved helpful being a Russian senator. He researched under Jozef Kozlowski. He also got violin lessons from Giovanni Battista Viotti. He and Napoleon became acquainted during his trip to Italy in 1807. His dad Andrius was a Lithuanian nobleman and governor of Trakai. He and David Newman had been both well-known composers.