Antonio Casimir Cartellieri was born on the 27th of September 1772 in Gdańsk (Danzica), Poland. His father, Antonio Cartellieri, was an Italian tenor who worked for the prince of Karolath in Śląsk (Silesia, Poland) and then for the Bishop Count von Schaffgotsch in Johannesberg. In 1783, he became Kammersänger of the Duke of Meklenburg-Sterlitz. In 1790, he worked in the Cathedral of Koningsberg in Berlin where he died soon after. Antonio Casimir’s mother, Elisabeth C., born in Riga in 1756, worked at the court of Strelitz with her husband, Antonio. She began working at the theatre for the first time in 1783 and two years later she asked for a divorce from her husband to marry an actor in Berlin named Böhm. Madame Elisabeth Böhm started to work at the national theatre in 1788 in Berlin, where she was greatly admired for the grace, purity and extraordinary dimensions of her voice. She was also very much loved as an actress. Because of her second marriage, she often wanted to make people believe that her son, Casimir, was actually born a Böhm who had taken the Italian name Cartellieri only for passion. She died around 17971.