In Croatia, Weller families are Croats (from Grubisno Polje area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and Garesnica.
Prevalence
About 10 people with faimily name Weller live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only two Croatian places: in Gornja Kovacica in Grubisno Polje area (<10) and Bjelovar (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.