eteṣām - of these; api - and; rāja-indra - O most eminent of kings; tanu-jānām - sons; madhu-dviṣaḥ - of Kṛṣṇa, enemy of the demon Madhu; pradyumnaḥ - Pradyumna; āsīt - was; prathamaḥ - first; pitṛvat - just like His father; rukmiṇī-sutaḥ - son of Rukmiṇī.

O best of kings, of these sons begotten by Lord Kṛṣṇa, the enemy of Madhu, the most prominent was Rukmiṇī’s son Pradyumna. He was just like His father.