Anthony Steffen, born Antonio Luiz de Teffé von Hoonholtz (July 21, 1930 – June 4, 2004), was an Italian and Brazilian film actor, screenwriter and film producer. Steffen achieved fame as a leading man in Spaghetti Western features. He was also known as Antonio Luigi de Teffe.
Born Antonio Luiz de Teffé von Hoonholtz at the Brazilian embassy in Rome, in the Pamphilj Palace, his family had noble blood of a long lineage of Count (von Hoonholtz) originally from Prussia; his great grandfather was the Great Baron of Tefé. Steffen was the first born among Manoel de Teffe' von Hoonholtz's children (followed by Federico de Teffe' and Melissa de Teffe'), who was a Formula One racing champion and later a Brazilian Ambassador. Steffen's grandaunt was Nair de Tefé von Hoonholtz, the first female caricaturist of Brazil and wife of Brazilian President Hermes Fonseca.
While still a teenager Steffen, then known as Antonio, fought in World War II along the Italian partisans against the Nazis.