I thought the lady of the lake was either
Vivienne or
Nimue, there are a few characters called
Elaine but not the lady of the lake. And a couple of them did, um, unsisterly things regarding
Lancelot...
I'd do:
Gawain Kai Morgana
Gwydion Taliesin Olwen
Merlin Owain Isolde
Or LOTR--
Peregrin
Theoden (
Theo)
Arwen