Uttarā
In the Mahabharata, Uttarā or Anglicized as Uttaraa (उत्तरा) was daughter of King Virata, at whose court the Pandavas spent a year in concealment during their exile. She was sister of Prince Uttara.
It is also believed that Uttaraa had learnt dance from Arjuna during the Pandavas' year of exile-in the Matsya Kingdom. Living incognito, as was the term of the banishment, Arjuna lived a life of a eunuch and practiced his art of dance learnt from the apsaras in heaven. Once King Virata realized who Uttaraa's dance teacher was, he immediately proposed to offer his daughter to Arjuna. However, Arjuna explained to King Virata the doting relationship that a teacher has with his/her student is like that of a parent and child. He then proposed to make Uttaraa his daughter by marrying her to his son, Abhimanyu.
Uttaraa was widowed at a very young age when Abhimanyu was killed in the Kurukshetra war. When Abhimanyu died, Uttaraa tried to burn herself on the pyre of Abhimanyu, but Krishna stopped her from doing so, informing her of her pregnancy.
Towards the end of the Mahabharata war, Ashwathama, son of Dronacharya, while trying to avenge the defeat of Duryodhana and the Kaurava army, engaged in a war with Arjuna. Knowing he could not best Arjuna conventionally, Ashwathama invoked the potent Brahmastra, despite the promise he had made to the father/teacher that he would never use such a weapon. When Arjuna fired a Brahmastra to match, Vyasa intervened, commanding both warriors to withdraw their weapons. While Arjuna successfully did so, Ashwatthama did not possess the required knowledge. Krishna suggested that Ashwatthama redirect the weapon to an uninhabited place. Regretful, tired, but still vengeful, Ashwathama decided that if he could not end the Pandavas, he would end their lineage. He fired the weapon at Uttaraa's womb, attacking the fœtus form of Parikshit. Krishna intervened and revived the stillborn baby, giving Parikshit his name.
As a punishment, Ashwathama was made to lose his source of power, the jewel that adorned his shining forehead. This loss of the jewel that adorned his forehead made Ashwathama lose his state of mental alertness and he was forced to retire to obscurity as a derelict in the forests. Parikshit became heir to the Kuru dynasty and eventually became king of Hastinapur. In due time, Parikshit gave Uttaraa a grandson, Janamejaya.