JAYATSENA I A King of the kingdom of Magadha. It is stated in
[Mahābhārata, Ādi Parva, Chapter 67] that this King, who was the son of Jarāsandha, belonged to the family of Kālakeya. This King was a friend of the Pāṇḍavas. Mention is made in
[Mahābhārata, Ādi Parva, Chapter 185, Stanza 8] , that Jayatsena was present at the svayaṁvara (marriage) of Draupadī. Towards the end of the battle of Bhārata, the Pāṇḍavas sent a letter of invitation to this King and accordingly he came to the help of the Pāṇḍavas with an akṣauhiṇī of army (21870 Chariots, 21870 elephants, 65610 horses and 109350 infantry).
[M.B. Udyoga Parva, Chapter 19, Stanza 8] .
JAYATSENA II A King of the Pūru dynasty. His father was Sārvabhauma and his mother was the princess Sunandā of Kekaya. Jayatsena married Suśravas, the princess of Vidarbha. A son named Arvācīna was born to them.
[M.B. Ādi Parva, Chapter 35] .
JAYATSENA III The name assumed by Nakula in his life incognito.
[Virāṭa Parva, Chapter 5, Stanza 35] .
JAYATSENA IV A King who took the side of the Kauravas. He was son of Jarāsandha. This King came with an akṣauhiṇī of army and helped the Kauravas in the battle of Bhārata.
[M.B. Bhīṣma Parva, Chapter 16, Stanza 16] . It is mentioned in
[Karṇa Parva, Chapter 5, Stanza 30] that this King was killed by Abhimanyu.
Note: 1.) The Mahābhārata mentions two princes of Magadha, bearing the same name ‘Jayatsena’. The fathers of both of them happen to be Jarāsandhas. But it is said that after the death of the famovs Jarāsandha his son Sahadeva became king. This Sahadeva, with his brother Jayatsena took the side of the Pāṇḍavas and fought against the Kauravas. Hence the King Jayatsena mentioned here must be the son of some other Jarāsandha of the Kingdom of Magadha.]
JAYATSENA V A son of Dhṛtarāṣṭra. It is mentioned in
[Mahābhārata, Bhīṣma Parva, Chapter 69] , that this Jayatsena was defeated by Śatānīka and in
[Śalya Parva, Chapter 26] that he was killed by Bhīmasena.