Mary - 19:28 O sister of Aaron, your father was not an evil man. Nor was your mother unchaste.
Mary kept her chastity:
Mary/19:16 And mention Mary in the Book. She was separated from her family and withdrew to a place on the eastern side.
Mary/19:17 She drew a veil between her and them. Then We sent Our Spirit to her and she was formed before Us as a perfect human being.
Mary/19:18 "I seek refuge from you to the Most Merciful,"she said, "if you are righteous. . ."
Mary/19:19 "(The angel said:) "I am a messenger from your Lord, commissioned to give you a pure son."
Mary/19:20 "He said, "How can I have a son when no human hand has touched me and I have not been unchaste?"

The Prophets/21:91 And the woman who guarded her chastity. Indeed We breathed into her from Our spirit. And We made her and her son a sign to the whole world.

The Prohibition/66:11 "Allah gives the believers the example of Pharaoh´s wife. She said, "My Lord, build for me a house in Paradise and save me from Pharaoh and what he did; save me from this unjust people"."
The Prohibition/66:12 And Mary, daughter of Imran. She kept her chastity, and We breathed into her of Our spirit, and she believed in the words of her Lord and in the Scriptures, and she was of those who obeyed.