In Croatia, Ambroš families are predominantly Croats (from Orahovica ), rarely Czechs (from Daruvar area ), and barely Hungarians (from Daruvar ). In the past century, relatively most of Croatian residents bearing this family name were born in Daruvar area and in Zagreb.
Prevalence
About 60 people with faimily name Ambroš live in Croatia today, in 30 households. There were 110 of them in the middle of the past century, and their number halved. They are located in 7 Croatian counties, in 6 cities and 7 other places, mostly in Koncanica in Daruvar area (<10), Zagreb (<10), Osijek (<10), Vinkovci (<10), and in Daruvar (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.