One of the powerful kings of the Vṛṣṇi dynasty and cousin of Mahārāja Kuntibhoja. His other name is Ahūka. His minister was Vasudeva, and his son was the powerful Kaṁsa. This Kaṁsa imprisoned his father and became the King of Mathurā. By the grace of Lord Kṛṣṇa and His brother, Lord Baladeva, Kaṁsa was killed, and Ugrasena was reinstalled on the throne. When Śālva attacked the city of Dvārakā, Ugrasena fought very valiantly and repulsed the enemy. Ugrasena inquired from Nāradajī about the divinity of Lord Kṛṣṇa. When the Yadu dynasty was to be vanquished, Ugrasena was entrusted with the iron lump produced from the womb of Sāmba. He cut the iron lump into pieces and then pasted it and mixed it up with the sea water on the coast of Dvārakā. After this, he ordered complete prohibition within the city of Dvārakā and the kingdom. He got salvation after his death. SB 1.11.16-17 Purportplugin-autotooltip__small plugin-autotooltip_bigŚrīmad Bhāgavatam 1.11.16-17

On hearing that the most dear Kṛṣṇa was approaching Dvārakādhāma, magnanimous Vasudeva, Akrūra, Ugrasena, Balarāma (the superhumanly powerful), Pradyumna, Cārudeṣṇa and Sāmba the son of Jāmbavatī, all extremely happy, abandoned resting, sitting and dining.