In Croatia, Petrih families are Croats (from Ilok ). In the past century, relatively most of Croatian residents bearing this family name were born in Ilok and Vukovar.
Prevalence
Only a few people with faimily name Petrih live in Croatia today, in three households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in two Croatian cities only, in Ilok (<10) and Pula (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over seventy times, the first time 1729 in source Catholic Church Parish Records.