
According to https://anno.onb.ac.at/cgi-content/anno?aid=nwb&datum=18930718&..., Joseph Sauer married Vera Francisci a dauther of Heinrich (Hinko) Francisci, not Dutković-Francisci.
https://anno.onb.ac.at/cgi-content/anno?aid=apz&datum=19041010&...
What are your sources for Dutković?
Dear Brando, Vera Dutkovič and Vera Francisci is the same person.
Vera was officially the daughter of August Dutkovič and Ludmilla Agnesi, but has been adopted and raised by Hinko Francisci in the castle of Samobor.
Some say that Vera was the natural child of Hinko Francisci and Ludmilla Agnesi, but that's another story ;-)
I'm not sure if he was married. Ljudmila Agnesi was mother of 11 or 12 children but I have no information about her death, neither information about Hinko's parents. You may obtain this info at Samobor's castle that is now the city museum. They keep interesting documents about the family, as well as a nice painting of Hinko. I can share a picture of it via e-mail if you wish.