Sir Percivale

Percivale le Galois' father (probably King Pellinore) was killed when Percivale was young. Therefore, he and his twin brother, Gurgi, were raised by their widowed mother deep in the forest. By doing this, Percivale's mother had hoped to keep her sons away from the dangers of knighthood and death, like their father. Thus Percivale had never seen a knight, a sword, or even a horse. He was untutored, badly dressed and entirely lacking in the chivalric graces expected of a knight, yet he became one of the few knights to actually see the holy grail in its full form.

He came across some knights one day, and, having seen some of King Arthur's knights, Percivale determined to go to the Royal Court at Caer-Ligualid and become one. His mother told him to demand either a kiss or a jewel from any ladies he met. So, when Percivale came upon a girl asleep in a tent, he kissed her and purloined her ring. On arrival at King Arthur's court, he discovered that the Red Knight had insulted Queen Guinevere by throwing wine over her and departing post haste. So Percivale pursued and killed him. He later stayed with an old knight named Gornemant de Goort who taught him chivalry and knighted him. Leaving his tutor, he came to the castle belonging to Lady Blanchefleur which was under siege by King Clamadeus. So he defeated Clamadeus in single combat and became Blanchefleur's lover. On the way to see his mother, a fisherman directed Percivale to his old family castle at Listinoise (which means "Castle in the North") where he beheld an old man - Pelles, the Fisher King - on a couch and was given a fine sword. The Holy Grail was paraded before him, but Percivale did not ask what the Grail was or whom it served. When he awoke the next morning, he found his sword broken and the castle deserted. He only just escaped it alive. Percivale then encountered his cousin who informed him that he should have asked more questions and told him to take the sword to its original forger. On his journey, he overcame the husband of the girl whom he had kissed earlier in the tent, who had not understood that Percivale had acted innocently. After five years of wanderings, he finally returned to Listinoise and asked his questions. He discovered that the Fisher King was wounded by fragments of a sword which had killed his brother. Though sustained by the Grail, his wounds would not heal until the murderer was brought to justice. Percivale killed the villain and the King recovered. It was then revealed that Percivale was the Fisher King's nephew and when the he died, Percivale succeeded to his kingdom.

In later versions, it was Sir Galahad who asked the questions in the end and saved the Fisher King.

Sir Percivale, along with Galahad and Bors are allowed to view the Holy Grail.