Frederic was, however, liberated from captivity, and he returned to Austria a dejected, broken-hearted man.

He pined away for a few months in languor, being rarely known to smile, and died at the castle of Gullenstein on the 13th of January, 1330.

His widow, Isabella, the daughter of the King of Arragon, became blind from excessive grief, and soon followed her husband to the tomb.
As Frederic left no son, the Austrian dominions fell to his two brothers, Albert III.

and Otho.

Albert, by marriage, added the valuable county of Ferret in Alsace to the dominions of the house of Austria.