Board Thread:Spoilers!/@comment-2153169-20170909025746/@comment-25926288-20171030200744

Yeah, Alice is a red herring. Of course, Alice probably loves chess, independent of Hook.

Working backwards, Mystery woman is love interest (of Alice) and relative (of Hook). Could be related to anyone, but Cinderella's family is full as is Henry's.

Working forwards, Eloise is assumed to be the daughter (of Hook).

This episode's flashback is about the past with Witch, Rapunzel, and Hook. Witch and Hook have a past, Tremaine and Hook have a past, it's presumed that Witch and Tremaine have a past.