Liz Watson

Elizabeth Mary Watson (formerly known as Elizabeth Blanchard) is the daughter of Sarah Cassidy and John Watson, the granddaughter of Prince Charming, Snow White, Rumplestiltskin, and Milah, step-granddaughter of Belle, and niece of Neal Cassidy.

She is based on Mary Watson from the Sherlock Holmes novels and Sherlock, a 2010 TV series

During First Curse
To prove that she loves her father and that he loves her back, Elizabeth takes a bite out of the apple that Regina gave John to posion him and to make him fall asleep as well as Emma. John tries to stop his daughter from eating the apple, but as she takes a bite from it, Elizabeth collapses to the floor as the piece of apple turnover falls from her hand ("An Apple Red as Blood").