Zatanna Zatara

Zatanna Zatara (legal name: Zatanna Loveridge) is a witch/human hybrid and the former girlfriend of Dick Grayson as well as the amither of Mari Grayson.
Originally from the United Kingdom, she and her father moved to San Francisco in 2003. In 2007, however, she came to stay in Gotham for a six-month period to attend a school there for witches. While there, she met Dick while he was Robin. The two of them bonded over their Romani heritage and then pursued a romantic relationship. This relationship ended when Zatanna went back to San Francisco in December, however, it did result in Dick becoming pregnant with her child during the same month.
Dick decided not to tell Zatanna of his pregnancy, and so despite a public announcement of the birth of their daughter, Mari Antonia Grayson (b. October 3rd, 2008), it seems that Zatanna is unaware that Mari is her daughter.