August and Juliusz Vetter, brothers of German descent, members of the Evangelical Reformed Church in the Republic of Poland, are remembered in Lublin's history as well-known industrialists, philanthropists, social activists, and patrons of culture. They were one of the main founders of the commercial school building at Bernardyńska street. Built in 1906-1907, the beautiful neo-Gothic building still functions as a complex of several vocational and post-secondary schools. Inside there is a room dedicated to the school's tradition and its patrons. (see the Multicultural Trail).