Ivan Kalcic became a Doctor under Franz Josef Schunbrun and l have been told he married a duchess Irene Antonia  Bessenyey.  He was born in Lipa Croatia, he was the 8th child and his parents wanted him to become a priest.  He left to study in Genova theology but he decided to leave and go to Vienna.  There he studied and got into medical academy and part of the Austrian regime. I really want to find out more. He had a son Iwan or Ivan but cannot find any other information what happened to that side of my ancestor. 

Any assistance would be fantastic thanks 

Kindest regards Suzy