SB Canto 1
Pāṇḍava Arjuna: The great hero of the Bhagavad-gītā. He is the kṣatriya son of Mahārāja Pāṇḍu. Queen Kuntīdevī could call for any one of the demigods, and thus she called Indra, and Arjuna was born by him. Arjuna is therefore a plenary part of the heavenly King Indra. He was born in the month of Phalguna (February-March), and therefore he is also called Phalguni. When he appeared as the son of Kuntī, his future greatness was proclaimed by air messages, and all the important personalities from different parts of the universe, such as the demigods, the Gandharvas, the Ādityas (from the sun globe), the Rudras, the Vasus, the Nāgas, the different ṛṣis (sages) of importance, and the Apsarās (the society girls of heaven), all attended the ceremony. The Apsarās pleased everyone by their heavenly dances and songs. Vasudeva, the father of Lord Kṛṣṇa and the maternal uncle of Arjuna, sent his priest representative Kaśyapa to purify Arjuna by all the prescribed saṁskāras, or reformatory processes. His saṁskāra of being given a name was performed in the presence of the ṛṣis, residents of Śatasṛṅga. He married four wives, Draupadī, Subhadrā, Citrāṅgadā and Ulūpī, from whom he got four sons of the names Śrutakīrti, Abhimanyu, Babhruvāhana and Irāvān respectively.
He met Ulūpī at Haridvāra (Hardwar), and he was attracted by a girl belonging to Nāgaloka, and thus Iravān was born. Similarly, he met Citrāṅgadā, a daughter of the King of Maṇipura, and thus Babhruvāhana was born. Lord Śrī Kṛṣṇa made a plan to help Arjuna to kidnap Subhadrā, sister of Śrī Kṛṣṇa, because Baladeva was inclined to hand her over to Duryodhana. Yudhiṣṭhira also agreed with Śrī Kṛṣṇa, and thus Subhadrā was taken by force by Arjuna and then married to him. Subhadrā's son is Abhimanyu, the father of Parīkṣit Mahārāja, the posthumous child. Arjuna satisfied the fire-god by setting fire to the Khāṇḍava Forest, and thus the fire-god gave him one weapon. Indra was angry when the fire was set in the Khāṇḍava Forest, and thus Indra, assisted by all other demigods, began fighting with Arjuna for his great challenge. They were defeated by Arjuna, and Indradeva returned to his heavenly kingdom. Arjuna also promised all protection to one Mayāsura, and the latter presented him one valuable conchshell celebrated as the Devadatta. Similarly, he received many other valuable weapons from Indradeva when he was satisfied to see his chivalry.
It is due to Arjuna only that the great philosophical discourses of the Bhagavad-gītā were again spoken by the Lord on the Battlefield of Kurukṣetra. His wonderful acts on the Battlefield of Kurukṣetra are vividly described in the Mahābhārata. Arjuna was defeated, however, by his son Babhruvāhana at Maṇipura and fell unconscious when Ulūpī saved him. After the disappearance of Lord Kṛṣṇa, the message was brought by Arjuna to Mahārāja Yudhiṣṭhira. Again, Arjuna visited Dvārakā, and all the widow wives of Lord Kṛṣṇa lamented before him. He took them all in the presence of Vasudeva and pacified all of them. Later on, when Vasudeva passed away, he performed his funeral ceremony in the absence of Kṛṣṇa. While Arjuna was taking all the wives of Kṛṣṇa to Indraprastha, he was attacked on the way, and he could not protect the ladies in his custody. At last, advised by Vyāsadeva, all the brothers headed for Mahāprasthan. On the way, at the request of his brother, he gave up all important weapons as useless, and he dropped them all in the water.
SB Canto 9
Nakula begot a son named Naramitra through his wife named Kareṇumatī. Similarly, Arjuna begot a son named Irāvān through his wife known as Ulupī, the daughter of the Nāgas, and a son named Babhruvāhana by the womb of the princess of Maṇipura. Babhruvāhana became the adopted son of the king of Maṇipura.