Yashovarman Kamboja
In the country of Kamboj there was a king named Yashovarman. He was a religious minded ruler, arid happiness prevailed in his kingdom. But the king had become old and had no children”
https://www.indiaa2z.com/festivals/rathsaptami.HTM
King Yashovarman Kamboj probably belonged to Pre-epic era: (1400/1300 BC).
The Kamboja and Gandhara kingdoms, being located in the extreme Uttarapatha of Madhyadesha or Aryanvarta, the Madhyadesha writers were not as familiar with these extreme kingdoms as they were with interior ones. Hence we have limited information on the ‘personal names’ of the Kamboja/Gandhara kings but especially about Kamboja kings as the Kamboja kingdoms were located at the extreme, in Central Asia, even beyond Gandhara. So the Kamboja kings has simply been addressed as ‘Kamboj’ (a tribal name) by the Aryavartan writers….as if this ‘Kamboj’ was their personal name. (Panini).
These were the Kamboja Kings mentioned in the Mahabharata: