The daughter of Matsya, the king of Virata. Her brother was also called Uttara.
The Pandavas stayed at Virata during their exile. There, Arjuna taught Uttara dance and music as Brihannala. Towards the end of the exile, she was married to Arjuna’s son Abhimayu. The son born to them was Parikshit, as per Mahabharata Adiparva Chapter 95 verses 83-84.
During the Mahabharata war, Abhimanyu was killed. Uttara fainted on hearing this as per Mahabharata Dronaparva Chapter 78 verse 37. Krishna consoled her. The Mahabharata Sriparva Chapter 20 verses 4-28 mentions how she cried on seeing Abhimanyu’s body.
Uttara was one of the women who followed Dhritarashtra until a distance when he proceeded to the forest as per Mahabharata Ashramavasikaparva Chapter 15 verse 10.