In Croatia, Brian families are Croats (from Djakovo area ).
Prevalence
Only a few people with faimily name Brian live in Croatia today, in one household only. They are located in only one small Croatian place, in Vuka in Djakovo area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1664 in source Catholic Church Parish Records.