Anfortas

The Fisher King or the Wounded King figures in Arthurian legend as the latest in a line charged with keeping the Holy Grail. Versions of his story vary widely, but he is always wounded in the legs or groin, and incapable of moving on his own. When he is injured, his kingdom suffers as he does, his impotence affecting the fertility of the land and reducing it to a barren Wasteland. Little is left for him to do but fish in the river near his castle Corbenic. Knights travel from many lands to heal the Fisher King but only the chosen can accomplish the feat. This is Percival in the earlier stories; in the later versions Percival is joined by Galahad and Bors.
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[Arthurian] In Wolfram's Parzifal, he is the Grail King and uncle to the hero knight. Failing his sacred obligations, he is wounded by a spear point that can only be healed when questioned by his nephew. Kept alive by the Grail, he lives in constant torment and pain. On Parzifal's first visit to the castle, he fails to ask any questions and Anfortas remains near death. After having learned compassion on his quest, upon returning Parzifal inquires of the wound and Anfortas is healed. In the opera, Wagner changes the spelling to Amfortas and makes the nature of his ordeal more complex and psychological.