Described as an erudite bon vivant and gourmand, he is remembered for a large number of anecdotes, jokes and sayings coined by him and about him.
His father was from among the German nobility, polonised in the 18th century and a distant relative of General Stanisław Fiszer, while his mother was a member of the Polish gentry and owner of the said manor and village.
With time, he became a characteristic part of the Warsaw's social panorama and became friends with most of the contemporary Polish writers, poets, artists and politicians.
Among the closest friends of Franc Fiszer were Bolesław Leśmian (Fiszer is said to have invented his pen-name), Stefan Żeromski, Władysław Reymont, the Skamandrites Antoni Słonimski and Julian Tuwim, Jan Lechoń, Miriam, Artur Rubinstein and Antoni Lange.
In 1985, most of the memoirs mentioning Franciszek Fiszer were collected by Roman Loth in a book titled Na rogu świata i nieskończoności (At the Crossing of World and Infinity).