Board Thread:General Discussion/@comment-24721813-20140701025328/@comment-24769579-20140705102259

Utter solitude wrote: I can see how you would think that, as Zelena was her first born, after all. :) It seems that Rumple, as the Dark One, knows almost everything. Cora may have thought he didn't know about Zelena.

But anyways it seems he didn't know as he came to 'collect' Regina, when Cora reminded him of the change in the deal.