The scene opens as King Arthur declares the ninth of the tournaments, the prize of which is the last of nine diamonds. Queen Guinevere declares that illness will prevent her attendance and promptly Launcelot declares that he will not enter the lists, supposing that the Queen's indisposition is but the excuse for their meeting. His declaration is received with surprise, for he has won the other tournaments and wields the mightiest lance. The Queen quickly undeceives the sharer of her guilty love and bids him go to the tournament and win. Launcelot rides forth, attended only by his squire, and, coming to the castle of Astolot, demands of its lord a plain shield that his identity may he hidden. He is made welcome and given the shield of Sir Torre whose shield is yet blank, for he was defeated by Launcelot at the last tournament and may not blazon his arms upon his shield until he has achieved a victory. Launcelot leaves his own shield, bearing his device, in the care of the lovely Elaine...
Moving Picture World synopsis