Career
Born in Krakow, at that time belonging to Eastern-Galicia (Austro-Hungarian-Monarchy), he is notable for the restaurant-bar he opened in Vienna in 1902, shortly before World War I. His spécialité de la maison were open sandwiches made of fresh, local dark bread cut into the typical rectangle-form with various spreads. Nowadays the Trześniewski restaurant at Dorotheergasse 1, in Vienna, is considered one of the best in town and is one of only three restaurants of the city centre advertised by the official municipal website. In all, there are 8 outlets in the city, each selling more than 20 various types of sandwiches, along with a Pfiff of Beer (a small glass, 1/8l) or Vodka.