Evirene is one of five daughters of Evoldo, king of Ev.
When her father sold her, her mother, and her nine siblings to the Nome King, they were all transformed into ornaments to decorate his palace. The royal family was later rescued by Billina and they returned to Evna where Evirene's oldest brother, Evardo, was crowned king. (Ozma of Oz)
Later she and the rest of her family visited the Emerald City of Oz to attend Princess Ozma's birthday party. (The Road to Oz)