What dynasty, running from the 15th to 20th centuries, was supported by Pop Gregory having Rudolph I as its first emperor?
3 answers
http://www.essortment.com/habsburghapsbur_rosi.htm
Sounds like the Hapsburg dynasty of Austria-Hungary, although Pope Gregory did not live 500 years.
http://history-world.org/hapsburgs.htm
http://history-world.org/hapsburgs.htm
Thanks so much!!