Are the stories of sir lancelot and elaine based on real things or are they false legends?

i'm wondering if this story is based on real events in king Arthur's time, if there are any good websites or you have any ideas let me knowAre the stories of sir lancelot and elaine based on real things or are they false legends?
Almost nothing is known historically about Britain in the 5th and 6th centuries, including whether the base of the legendary Arthur was one of the personages of whom we know a little, was someone otherwise unknown to history, or whether this legendary Arthur was based on pure invention.





Lancelot is even more dubious. He doesn’t appear at all in Welsh tales except for late, where he is called Lawnslot, indicating he was borrowed from non-Welsh tales. True Welsh names can begin with a double “l', but no true Welsh word or Welsh name begins with a single “l';.





See http://www.britannia.com/history/h12.htm… and http://faculty.arts.ubc.ca/sechard/344ar… and http://en.wikipedia.org/wiki/King_Arthur for a starting study.





The story of Lancelot and the daughter of King Pelles first appears in the “Prose Lancelot' and the story of Lancelot and the maiden of Escolat first appears in the “Mort d’Artu”, You can find details on them at http://www.timelessmyths.com/arthurian/v… .





The daughter of King Pelles is called Elaine in error in some versions of a romance now mostly called the “Vulgate Merlin” in a passage in which some words are missing between some talk of a damsel named Elaine the Peerless and some talk about Heliabel or Amide, the daughter of King Pelles. Sir Thomas Malory may have picked up from this error in his “Le Morte d’Arthur”. Sir Thomas Malory is also the only source to also name the maiden of Escolat as Elaine of Astolat. See http://www.sacred-texts.com/neu/mart/ .





See http://www.celtic-twilight.com/camelot/b… for more information on both Elaines and other Arthurian trivia.Are the stories of sir lancelot and elaine based on real things or are they false legends?
Sir Lancelot Du Lac / Del Acqys was a French knight who joined King Arthur's court. Some link his surname with the French House of Aquitaine who were descended from the old French Kings the Merovingians. Lancelot is mentioned in the original stories of King Arthur and his knights but his affair with Guenevere isn't.