Yadav
According to a modern historian, Romila Thapar, the kinship system of the Yadavas shows traces of matrilineal structure, which is found from the mention of their cross-cousin marriages. This is particularly prohibited in the Indo Aryan kinship system. The Vishnu Purana mentions that Krishna married Rukmini, a Vidarbha princess. His son Pradyumna married Kakudvati, daughter of Rukmin, brother of Rukmini. Pradyumna's son Aniruddha married Subhadra, granddaughter of Rukmin.