Namely Vichitravirya and Chitrangada. But before they attained to their youth, Chitrangada was killed by the Gandharvas. Therefore, Vichitravirya became king.
विचित्रवीर्यश्चित्राङ्गदश्च। तयोरप्राप्तयौवन एव चित्राङ्गदो गन्धर्वेण हतः; विचित्रवीर्यस्तु राजाऽऽसीत्॥