^^^#1 above, is that the Puranic version? In the Mahabharat, Mausala Parva, Vasudev dies the day after Arjun arrives in a yogic trance, and Arjuna does his cremation, and Vasudev's 4 wives enter his fire (but not Revathy, Rukmini & others). All the women & children of Dwarka accompany Arjun, and en route, they are attacked by bandits and a lot of the women were successfully abducted. After they arrived @ Indraprastha, Rukmini and 4 of Krishna's other wives entered the fire, Satyabhama, Mitravindya and one more wife went to the Himalayas to practise austerities, and the 16,100 wives from Narakasura drowned themselves in the Saraswati. I'm assuming that Revathy too may have entered the fire b4 Rukmini.
I asked the question b'cos in the Mahabharata version, no mention was made of Ugrasena in that chapter, other than him being the one to order the mace that Samba gave birth to to be grounded, and scattered on the soil where the fratricide happened. After that incident, no more mention of Ugrasena.
Thanks anyway, for the info on his sons.