Vrushala( also known as Padmavati).

She was the first wife of Karna who burned herself along with Karna’s burial,

Duryodhana used to say “if my True friend is a character like Karna ( i.e actually Karna) , his wife was another female Karna, whom i respect like my own sister i.e Dusshala “.

Vrishali performed Sati and ended up in the flames so we can say there was soul to soul connection with him

It was not necessary for wives to do sati after marriage they can attain widowhood

“. Once Draupadi after the war asked Kunti in a joke where all Pandavas were sitting together along with Subhadra, “ Mom tell me which wife of your son is best in looks ?

Kunti answered 1st was Hidimba , Bheema’s second wife but she added Hidimbaa incorporated such looks as she was never a simple human being before. So the first name came to her mind was Vrushala or Padmavati and Kunti said her name - next Subhadra -Arjuna’s another wife and then Uluupi -Arjuna’s another wife and Sri Krishna’s sister , next was Draupadi .The next name was Karna’s another wife Supriya who left after the war to her own father’s house leaving Brishaketu at the responsibilty of Arjuna and Subhadra and then the name of Chitrangadaa -Arjuna’s another wife , the last was Bheema’s 3rd wife , daughter of King of Kashi