Shishupala was the king of the Chedi kingdom, and an antagonist in the Mahabharata. He was the son of King Damaghosha and Srutashubha, the sister of Vasudeva and Kunti, as well as the cousin of Nanda. He was slain by Krishna, his cousin and an avatar of Vishnu, at the great coronation ceremony of Yudhishthira, as a punishment for his opprobrious abuse made against him. He is also referred to as Chaidya. Shishupala is considered to be the third and last birth of Vishnu's gatekeeper Jaya.
Krishna slays Shishupala at the Rajasuya Yajña of Yudhishthira
Vasudeva, also called Anakadundubhi, is the father of the Hindu deities Krishna, Balarama, and Subhadra. He was a king of the Vrishnis, and a Yadava prince. The son of the Yadava king Shurasena, he was also the second cousin of Nanda, the foster-father of Krishna. His sister Kunti was married to Pandu.
Vasudeva carrying the newborn Krishna to Nanda's house in Gokula across the river Yamuna
Vasudeva Takes the Infant Krishna Across the Yamuna River. Master at the Court of Mankot, c. 1700. Government Museum and Art Gallery, Chandigarh
Krishna and Balarama meeting their parents (painting by Raja Ravi Varma)
Image: Vasudeva carrying baby Krishna in a basket across the Yamuna, Art of Mathura, circa 1st century CE