He started to paint very early and in its artistic workshops in northern Italy and southern Germany.
Because the Paulist order paid particular attention to artistic and cultural activities within the order, he remained in Croatia from his twenties until his death at Lepoglava, decorating sacral interiors and producing one of the most remarkable Baroque opuses of Central European mural painting.
The order's treasures, such as books and other valuables, were scattered or destroyed, its activities left to be lost in time.
These characteristics are the illusionist painting of architecture, the recognizable typology of saints' figures, the colourist features and the incorporation of large compositions onto the relatively small and low walls of the churches.
The Pauline order painting school of workshop continued in that way its activity in north-western Croatia long after Ranger's time.