Her mother's vow and her name (Quran 3:33-36)
The Quran says that Allah chose Adam, Nuh (Noah), the family of Ibrahim (Abraham) and the family of 'Imran over the worlds (3:33-34). Maryam belonged to this last family.
The wife of 'Imran said: "My Lord, I have vowed to You what is in my womb, devoted to Your service, so accept it from me." When she gave birth to a girl, she said she had delivered a female, though Allah knew best what she had delivered. She named her Maryam and asked Allah to protect her and her descendants from Satan, the rejected.
The Quran does not give the name of Maryam's mother, only that she was the wife of 'Imran.