Corbenic (also spelled Corbenic or Corbonek), Carboneck (Carbonek or Carbonic), or Corbin is the name of the castle of the Holy Grail in the Lancelot-Grail cycle and Thomas Malory's Le Morte d'Arthur. It is the domain of the Fisher King and the birthplace of Sir Galahad.
Read more about Corbenic: Description, Etymology, Location, Other Grail Castles