Ferdinand I., emperor of Germany (1556-64), born at Alcalá, in Spain, son of Philip I., married Anna, a Bohemian princess, in 1521; was elected king of the Romans (1531), added Bohemia and Hungary to his domains (1503‒1564).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Ferdinand the Catholic * Ferdinand II.