Who is Rosalind from Tales from Shakespeare and what is their importance?

Rosalind, daughter of Duke Senior, lives with her cousin Celia and Duke Frederick at the start of the play. When Duke Frederick banishes her, she disguises herself as a young boy, claims the name of Ganymede, and flees into the forest of Ardenne. In the end, Rosalind marries the man of her dreams..... Orlando.