Question: What key details about franz , duke of hohenberg can be extracted from the following bio? Bio: franz ferdinand , duke of hohenberg -lrb- born 13 september 1927 at artstetten castle , austria -- died 16 august 1977 at ried in der riedmark , austria -rrb- . he was the eldest son of maximilian , duke of hohenberg and countess maria of waldburg at wolfegg and waldsee . he was also a grandson of archduke franz ferdinand of austria and hungary and his morganatic wife sophie , duchess of hohenberg . by definition of a morganatic marriage , he was excluded as heir presumptive to the throne of the austro-hungarian empire . following the collapse of the monarchy , all austrian titles were abolished by law in 1919 and from there on the names consists only of prename and surname , without von or title , scilicet '' franz ferdinand hohenberg '' .
Answer:
- issue is princess anna princess sophie- succession is duke of hohenberg- successor is georg , duke of hohenberg- mother is countess maria of waldburg at wolfegg and waldsee- spouse is princess elisabeth of luxembourg- predecessor is maximilian , duke of hohenberg- death date is 16 august 1977- father is maximilian , duke of hohenberg- birth date is 13 september 1927- name is franz