Gore 's great - grandfather Eugen Fidel Vidal was born in Feldkirch , Austria , of Romansh background .
Gore 's great - grandfather Eugen Fidel Vidal was had come to the U.S. with Gore 's Swiss great - grandmother , Emma Hartmann .
Gore 's great - grandfather Eugen Fidel Vidal was born in Feldkirch , Austria , of Romansh background , and had come to the U.S. with Gore 's Swiss great - grandmother , Emma Hartmann .