In Croatia, Bratelj families are almost entirely Croats (from Samobor ), barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and in Slovenia. In Bratelji in Samobor every second inhabitant had the family name Bratelj.
Prevalence
About 40 people with faimily name Bratelj live in Croatia today, in 17 households. There were 40 of them in the middle of the past century, and their number remains constant. They are located and 5 other Croatian places, mostly in Zagreb (10), Samobor (10), Bratelji (<10), Gradna (<10), and in Bregana (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.