Who is Little Briar-Rose from The Complete Fairy Tales of the Brothers Grimm and what is their importance?

Because of her parents' mistake in not inviting one wise woman to a party, Briar-Rose is cursed to prick her finger on a spinning wheel and fall asleep. The child is released from her curse when a prince with good timing shows up just as the curse is coming to an end. In her more modern form, this character is known as Sleeping Beauty.