This man accepts Gromer Somer Joure's challenge to figure out what women want in a story reminiscent of the Wife of Bath's Tale about his wedding to Dame Ragnelle.  
A text, supposedly by Robert of Torigny, tells of this character's "Rise," and notes that he once caused an embarrassing situation between Guenivere and Arthur when he pushed Arthur into the River Usk. This man accepts Gromer Somer Joure's challenge to figure out what women want in a story reminiscent of the Wife of Bath's Tale about his wedding to Dame Ragnelle.  In another story, this character wears the symbol of a pentangle and rests at Lord Bertilak's castle, where his chastity is thrice tested, before setting out to bear the brunt of an axe-blow. For 10 points, name this knight of the Round Table, who got into a beheading contest with the Green Knight.
A text, supposedly by Robert of Torigny, tells of this character's "Rise," and notes that he once caused an embarrassing situation between Guenivere and Arthur when he pushed Arthur into the River Usk.
Sir Gawaine [accept Gwalchmei; Gawan; Gauvan; or Walewein]