In Croatia, Fritz families are Croats (from Vinkovci area ), barely Czechs (from Sisak ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Vinkovci.
Prevalence
About 60 people with faimily name Fritz live in Croatia today, in 30 households. There were 40 of them in the middle of the past century, and their number increased by 40 percent. They are located in 10 Croatian counties, in 10 cities and 7 other places, mostly in Zagreb (15), Nustar in Vinkovci area (15), Rijeka (10), Sisak (<5), and in Sesvete (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.