What was the name of Lord Karishana Son?

Answer 1

Here are the answers according the the authority of Srimad Bhagavatam:

SB 10.90.31: The Supreme Lord Krishna, whose endeavor never fails, begot ten sons in each of His many wives.

SB 10.90.32: Among these sons, all possessing unlimited valor, eighteen were maha-rathas of great renown. Now hear their names from me.

SB 10.90.33-34: They were Pradyumna, Aniruddha, Diptiman, Bhanu, Samba, Madhu, Brihadbhanu, Citrabhanu, Vrika, Aruna, Pushkara, Vedabahu, Srutadeva, Sunandana, Citrabahu, Virupa, Kavi and Nyagrodha.

SB 10.90.35: O best of kings, of these sons begotten by Lord Krishna, the enemy of Madhu, the most prominent was Rukmini's son Pradyumna. He was just like His father.

SB 10.90.36: The great warrior Pradyumna married Rukmi's daughter [Rukmavati], who gave birth to Aniruddha. He was as strong as ten thousand elephants.

SB 10.90.37: Rukmi's daughter's son [Aniruddha] married Rukmi's son's daughter [Rocana]. From her was born Vajra, who would remain among the few survivors of the Yadus' battle with clubs.

SB 10.90.38: From Vajra came Pratibahu, whose son was Subahu. Subahu's son was Santasena, from whom Satasena was born.

SB 10.90.39: No one born in this family was poor in wealth or progeny, short-lived, weak or neglectful of brahminical culture.

SB 10.90.40: The Yadu dynasty produced innumerable great men of famous deeds. Even in tens of thousands of years, O King, one could never count them all.

SB 10.90.41: I have heard from authoritative sources that the Yadu family employed 38,800,000 teachers just to educate their children.