A king who ruled the Castle of the Most Ill Adventure (Castel of the Hevy Sorrow) in the Norse Ivens Saga.
To save his own life, he pledged thirty maidens per year to a giant named Fjallsharfir. Yvain slew the giant and saved him from the pledge.
The character appears unnamed in Chrétien’s Yvain.
See also
Hungary | The Legend of King Arthur
Source
Ivens Saga | 13th century