Board Thread:Character Discussion/@comment-5679696-20150427225803/@comment-1826156-20150510002951

She could be Mombi from Oz. In Return to Oz, Mombi's Kansas counterpart worked as a severe nurse in the asylum where Dorothy was taken.

The rose Regina gives her could also be a nod to the first Oz book where Mombi appears, since in that book she disguises herself as a rose that is plucked by the Tin Woodman and later noticed by Glinda. Mombi was also Ozma's keeper in both the books and Return to Oz, so she would possibly make a good woman to watch the desk at Regina's nut-hou...I mean, asylum.