Is Vitiligo A Heritable Disorder?

Hi doctor.My name is XXXX.I wanted to ask one doubt regarding Vitiligo.Recently have had a marriage proposal from a girl whose family has vitiligo disease history.As far the girl is concerned she doesnt have vitiligo but her maternal grandfather has vitiligo.Also more information is her Maama s (i mean brother of her mother) daughter also had vitligo.So my question are there chances that the girl whose proposal has come will get vitiligo in future?Or will the children which i will have with her : will they can get vitiligo.Please help !