Launfal (Sir), steward of king Arthur.  Detesting queen Gwennere, he retired to Carlyoun, and fell in love with a lady named Tryamour.  She gave him an unfailing purse, and told him if he ever wished to see her, all he had to do was to retire into a private room, and she would be instantly with him.  Sir Launfal now returned to court, and excited much attention by his great wealth.  Gwenere made advances to him, but he told her she was not worthy to kiss the feet of the lady to whom he was devoted.  At this repulse, the angry queen complained to the king, and declared to him that she had been most grossly insulted by his steward.  Arthur bade sir Launfal produce this paragon of women.  On her arrival, sir Launfal was allowed to accompany her to the isle of Ole'ron; and no one ever saw him afterwards.—Thomas Chestre, Sir Launfal (a metrical romance, time, Henry VI.).
    James Russell Lowell has a poem entitled The Vision of Sir Launfal. (The Reader's Handbook of Famous Names in Fiction, &c., Brewer, 1899)