Krishna Mother Devaki
Devaki was the daughter of Devgan, the brother of Raja Ugrasen of Mathura. Devaki was married to Vasudev. When Kans was going to leave his sister in his house, he heard a sound that the eighth child of your sister(devki), whom you are gladly taking to his house, will kill you. After hearing this, Kansa got very angry and put Devaki and Vasudev in jail. And whenever Devaki gives birth to a child, Kansa kills him. Kansa had killed 6 children of devki. Balram was his seventh son. The eighth child was Krishna (who was actually the incarnation of Lord Vishnu). When Krishna was born, Vasudev left him in another village, Gokul where Nand and his wife Yashoda raised him. While returning, Vasudev took Mahamaya, the daughter of Yashoda, with her. It is said that when Kans tried to kill her, she got rid of his hand and go towards the sky, and she predicted that your killer(Krishna) has taken birth.