Uhm, absolutely! I have the daughter of the Evil Queen here, so if you wanted to say she followed in her father's footsteps and is charged to protect the princess that would be awesome!
Granted, she'll have her work cut out for her since Gwen is planning on leaving the castle soon to rid herself of a nasty curse. She knows next to NOTHING about life outside the castle though, so a little survivalist would help immensely.