Subhadra is the sister of Krishna. She is considered an incarnation of YogaMaya who appears as per the instructions of Krishna. Subhadra was married to her first cousin Arjuna, the Pandava, who was the third son of Queen Kunti. Kunti was the sister of Vasudeva, who was Subhadra's father.
Subhadra and Arjuna were the parents of Abhimanyu, whose posthumous son Parikshita, born to the widowed Uttara, was the sole surviving dynast of the entire Kuru family.
Lords Balarama, Subhadra, and Jagannath
In Jagannath Puri, Subhadra's birthday is celebrated on Janmastami. According to the Niladri-mahodayam, Mahamaya was conceived in the womb of Yashoda and took her birth in the family of Nanda. Vasudeva then exchanged Krishna and Durga as Krishna ordered him to do. Mahamaya’s birth is celebrated in the Jagannath temple along with Krishna’s birth. Subhadra Devi represents Durga and hence is given special prayers and worshiped during the Durga Janmotsava.
Bhakti