33 mentions are found for request
different sources from the year —1925 (9) 1927—1938 (6) 1946 (10) 2007 (8)

Stjepan Korošec

Source: 'Encyclopaedia of Croatian Surnames , year 2007.

Vilim Korošec

Source: 'Encyclopaedia of Croatian Surnames , year 2007.

Dragutin Korošec

Source: 'Encyclopaedia of Croatian Surnames , year 2007.