Originally posted by: ThePirateKing
I believe even Madra was also without any ruler. There is no mention of the Pandava sons from other wives (especially YBNS).
Probably it might have been distributed among them and they could have flourished as minor kingdoms owing allegiance to whoever sits in Hastinapur. Ofcourse no documentation means we can only speculate.Not sure if Jaimini's version of MB had more details. His Ashwamedha parva was seriously detailed.