She hasn't appeared in the main universe.* ||DC likes to make "new earths" and parallel worlds and stuff|| She exists in Earth-22
[link] <<if you want to read about her
*just remembered she does appear in a cross-over story, the future "Kingdom Titans" met the current "Teen Titans" - she meets a younger version of her father
[link] << here's an image
So basically, she's a real character, but DC comics doesn't use her much. ||that's probably a good thing. DC has the bad habit of killing off their popular sons and daughters of heroes||