Read spoilers at your own risk! For more on Wetpaint Entertainment's philosophy on spoilers, click here.
Spoiler TV reports that Season 2, Episode 3 will be titled "Lady of the Lake," which is almost certainly an allusion to the Arthurian legend of, uh, the Lady of the Lake.
This character has various roles (and names) in the Arthurian story, depending on which version you're reading. She's mostly known for giving King Arthur his sword, Excalibur, enchanting Merlin (in some tales she's the one who traps him in a cave) and, most notably, raising Lancelot after his father dies when he is a young boy.