What type of details about prince daniel , duke of vastergotland can be gathered from the following bio? Bio: prince daniel of sweden , duke of vastergotland -lrb- born olof daniel westling on 15 september 1973 -rrb- , is the husband of crown princess victoria of sweden . prior to his marriage to the heir apparent , daniel was a personal trainer and gym owner and ran a company called '' balance training '' with three gyms in central stockholm . his full name is olof daniel westling bernadotte as registered with the swedish tax authority 's national census .
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