Charles V divided the House in 1556 by ceding Austria along with the Imperial crown to Ferdinand (as decided at the Imperial election, 1531), and the Spanish empire to his son Philip. The Spanish branch (which also held the Netherlands, the Kingdom of Portugal between 1580 and 1640, and the Mezzogiorno of Italy) went extinct in 1700. The Austrian branch (which also ruled the Holy Roman Empire, Hungary and Bohemia) was itself divided between different branches of the family from 1564 until 1665, but thereafter it remained a single personal union.