Tivala

Tivala Maurya (born 3rd-century BC), also referred to as Tivara, was a son of Emperor Ashoka from his second queen, Karuvaki. He is the only son of Ashoka who is mentioned by name in his inscriptions, along with his mother, in the Queen Edict.

Tivala is the only son of Ashoka whose existence is attested by historical evidence and who was a possible successor to his father. However, it seems that Tivala may have predeceased Ashoka and thus could not succeed him as Emperor. Tivala is also considered to have been a favourite child of his aging father.

Source :

https://en.wikipedia.org/wiki/Tivala