Reminder: The Elaines... don't have to be called "Elaine"
To break it all down with the major Elaines (most of whom came from Vulgate Cycle):
Elaine of Astolat - was orignally nameless when first introduced Vulgate cycle and was just called the "Damsel of Ascolat"
Elaine of Corbenic - Was originally named Amite or Helizabel when first introduced in Vulgate Cycle
Elaine of Benoic - While called Elaine in the Vulgate Cycle, other alternative names for her include Clarine (her name in the earlier german Lanzelet) or Gostanza (from the later Tavola Ritonda)
Elaine of Garlot - was not originally called Elaine when first introduced in Vulgate, instead her name was Blasine
Elaine the Peerless: Introduced in Vulgate Cycle, she is only the one who has no alternative name.
Special Mention: Pellinore's daughter - who is sometimes called Elaine - is nameless when first introduced in Post-Vulgate. Some variants called her "Alyne" instead.
So, apart from Elaine the Peerless (who is only relevant to Hector de Maris) and maybe Miss "Astolat", none of the above women explicitly need to be called "Elaine".
