Board Thread:Spoilers!/@comment-6175354-20140126015900/@comment-6175354-20140219164105

Prince of Rascia wrote: Maybe she gave birth before the events of TMD episode, but that would contradict Rumple's deal with her about her firstborn child. Actually, it would not contradict Rumplestiltskin's deal. If Cora gave birth to Zelena before the events of the 2.16 flashback, she would not have owed Rumplestiltskin the child.... the deal did not exist, yet.

Rumplestiltskin only sees bits and pieces of the future. He might have misinterpreted what he saw, as usual. He foresaw Cora's firstborn daughter, casting a curse. He just assumed that it referred, to Regina and the Dark Curse.