Lucy's mother. She was also a Celestial Spirit Mage.
Before Layla died, she has Capricorn make a pact with her to protect her family, and her two Celestial Spirits, Aquarius and Cancer, along with Capricorn are sent to 3 different masters. The masters agree to Layla's terms and pass down the spirits to Lucy when Lucy is mature.
Layla is created by Hiro Mashima, and she has no information regarding any inspiration used to create her. She first appears in chapter 68 of Fairy Tail volume 9 and episode 29.
She is the spitting image of her daughter, Lucy.
Even though Layla is dead before the main storyline, her death changed Lucy and Jude.