Your son Durmukha and the other son the great car-warrior Dussaha, both of them are considered to be the most heroic, were slain in battle by Bhimasena by means of his mace.
पुत्रस्ते दुर्मुखो राजन् दुःसहश्च महारथः। गदया भीमसेनेन निहतौ शूरमानिनौ॥