In Croatia, Defranceski families are Croats (from Crikvenica ). In the past century, relatively most of Croatian residents bearing this family name were born in Crikvenica and Senj.
Prevalence
About 10 people with faimily name Defranceski live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Zagreb (<5).
Outside Croatia
Family name Defranceski is present in 20 countries worldwide. "Defranceschi " is used by some 300 people in Italy , about 100 in the United States , and some 60 people in France.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1935 in source Faculty of Humanities University of Zagreb Alumni.