In Nagykanizsa he meet his future wife Paula (née Deutsch), with whom he moved to Zagreb in 1869.

Granitz and his family were philanthropists as they often aided poor and needy, organizing charity fundraisers.

Independent State of Croatia regime seized all the assets of the Granitz family, including their house.

His daughter Olga (married Schulz) was killed on the street amid Zagreb by unknown Ustaša.

After the war, in the newly established SFR Yugoslavia, Granitz properties were not returned to the surviving members of his family.

[4] In Zagreb, where he moved from Hungary, Granitz meet his future business partner Lavoslav Hartman.

was merged with the printing house of Ivan Novak, to found the Graphic and Publishing Bureau "Tipografija d.d."