Question: Queen Mab, is a fairy referred to in William Shakespeare's play "Romeo and Juliet", where "she is the fairies' midwife", in her play, her activity is described in a famous speech by which fictional character in William Shakespeare's 1597 tragedy, a close friend to Romeo and a blood relative to Prince Escalus and Count Paris?
Sentence (from "Mercutio"): The invitation to Capulet's party states that he has a brother named Valentine.
Relevant evidence: No