Perceval

Percival or Perceval is one of King Arthur's legendary Knights of the Round Table. In  Welsh literature his name is Peredur (see the Peredur article for the historical figure). He is most famous for his involvement in the quest for the Holy Grail. There are many versions of Percival's birth. In most accounts he is of noble birth; his father is either King Pellinore or another worthy knight. His mother is usually unnamed but plays a significant role in the stories. His sister is the bearer of the Holy Grail, she is sometimes named Dindrane. In tales where he is Pellinore's son his brothers are Sir Tor, Sir Aglovale, Sir Lamorak, and Sir Dornar.
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n. Perceval, a knight of King Arthur who wins a sight of the Holy Grail

{Chrètien de Troyes}

[Arthurian] The Knight of the Round Table who, according to Malory's Le Morte d'Arthur, finally won sight of the Holy Grail. He was the son of Sir Pellinore and brother of Sir Lamorak. In the earlier French romances he has no connection with the Grail, but here he sees the lance, dripping with blood, and the severed head surrounded by blood on a dish.

PARSIFAL