Queen Leah and her husband King Stefan are the monarchs of an unnamed kingdom. After many years of marriage she gives birth to a beautiful baby daughter which she and her husband name her Aurora. Her happiness is shortened when Maleficent, who wasn't invited, curses her daughter. Devastated, she has to see her daughter taken away by the fairies in order to protect her. Sixteen years later she is waiting the return of her daughter, but when Eve touches the spindle, the Queen and the entire kingdom are put in a sleep by the good Fairies. When Maleficent is defeated she awakens, and finally meets her daughter.
In Disney descendants Ben who is the Next King to take the throne In his first proclamation he says he will give a chance for four children from The Isle of the Lost to live and go to school in Auradon. The four are Carlos De Vil (son of Cruella De Vil), Jay (son of Jafar), Evie (daughter of the Evil Queen) and Mal (daughter of Maleficent). Adam (King Beast) is reluctant to go with it because their parents committed evil schemes.
Queen Leah is first seen in Descendants at parents day when she sees Mal and mistakes her for her mother. When Ben reminds Leah of his proclamation to give the new generation a chance, Leah causes a scene which she all but claims the children from the isle of the lost will destroy the residents of Auradon. She reminds the people of the trouble caused by their parents essentially undoing the progress that had been made. She also blames Mal's mother for making her miss Aurora's entire childhood. After the incident at Ben's coronation she appears to have accepted the VKs as her granddaughter Audrey thanks Mal for saving them from her mother.