Sir Lancelot, in the early-thirteenth century pre-cyclic Old French romance Lancelot, spends almost the entire length of the romance incognito, taking on a dozen or more knightly disguises before the end of the tale, in an effort not to be recognised [REF].
Thomas of Britain's twelfth century romance Tristan, reworked into Middle High German by Gottfried von Strassburg, contains a lot of episodes where Tristan assumes a disguise, both before and after Isolde becomes the queen to King Mark of Cornwall, Tristan's uncle [REF].