In Croatia, Fortuna families are Croats (from Cazma ). In the past century, relatively most of Croatian residents bearing this family name were born in Cazma and Zagreb.
Prevalence
About 50 people with faimily name Fortuna live in Croatia today, in 19 households. There were 80 of them in the middle of the past century, and their number decreased by 40 percent. They are located in four Croatian counties, four cities and threee other places, mostly in Zagreb (25), Milasevac (10), Pula (<5), Krizevci (<5), and in Cazma (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.