In Croatia, Brandolin families are Croats (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
Only a few people with faimily name Brandolin live in Croatia today, in one household only. They are located in only one small Croatian place, in Buzdohanj in Rijeka area (<5).
Outside Croatia
Family name Brandolin is present in 11 countries worldwide. "Brandolyn " is used by few people in the United States.