Otto Zoff was born in Prague on April 9, 1890.His father was a Catholic and came from ÖAustria.His mother was Jewish and came from Czechoslovakia.At the age of two, Otto Zoff´s family moved to ÖAustria.In Vienna, Otto Zoff studied art history and archäology,literature, and history.In 1914.

In the address book of the city of Munich 1923, the following entries can be found: Sonder Sali, Kaufmann,Andréestr.2 T - Sonder Sali, Farbenfabrik, Öl, Fett- und Lackhandlung. Business. Andréest.2 T, warehouse Donnersbergerstr. 9b ( Inh. Sali Sonder u. Julius Stern ). Sali Sonder was married to Karoline Stern, born on 18.02.1884 in Reckendorf, district Bamberg. Her brother Julius Stern and Saly Sonder were partners of Sali Sonder OHG.