The Spanish branch of this dynasty was initiated when Philip the Handsome married Joanna the Mad.
Two branches of this dynasty negotiated the secret Oñate (oh-NYAH-tay) Treaty. Several members of this dynasty, including Frederick III, used the acronym AEIOU. The Spanish branch of this dynasty was initiated when Philip the Handsome married Joanna the Mad. Rudolph IV and Maximilian I were among the members of its Austrian branch. A Spanish king from this family opposed the (*) Protestant Reformation in Germany as Charles V. For 10 points, name this royal house which produced all the Holy Roman Emperors from 1438 to 1740.
Two branches of this dynasty negotiated the secret Oñate (oh-NYAH-tay) Treaty.
House of {Habsburg}