Habsburg, House Of, Power and weakness

The Habsburgs reached the zenith of their power before the end of the 16th century: the duchy of Milan, annexed by Charles V in 1535, was assigned by him to his son, the future Philip II of Spain, in 1540; Philip II conquered Portugal in 1580; and the Spanish dominions in America were ever expanding. There were, however, three faults in the power structure—two of them historical accidents, the