52 mentions are found for request
different sources from the year —1906 (9) 1917 (10) 1923—1938 (7) 1942 (14) 1943 (1) 2007 (11)

Slavko Hren

Source: 'Encyclopaedia of Croatian Surnames , year 2007.

Dragutin Hren

Source: 'Encyclopaedia of Croatian Surnames , year 2007.