Petunia Dursley  was a Muggle, the elder daughter of Mr and Mrs Evans and the sister of the Muggle-born witch Lily. During her childhood, she broke off contact with her sister and refused to have any contact with the wizarding world.She married a Muggle, Vernon Dursley and they had a son, Dudley. However, when Lily was killed by Voldemort, Petunia became guardian of her nephew, Harry Potter, who was only an infant then. She allowed him a room of his own after receiving his acceptance letters to Hogwarts (prior to this time he had been confined to thecupboard under the stairs), but for the most part neglected him. In1991, when Harry went to Hogwarts School of Witchcraft and Wizardry, she became very angry. She and her family left their home in 1997 in order to be protected from Lord Voldemort and his Death Eaters.After the Second Wizarding War, she had several grandchildren.