SB 10.61.36

rukmiṇaivam adhikṣipto
 rājabhiś copahāsitaḥ
kruddhaḥ parigham udyamya
 jaghne taṁ nṛmṇa-saṁsadi
Synonyms: 
rukmiṇā — by Rukmī; evam — in this manner; adhikṣiptaḥ — insulted; rājabhiḥ — by the kings; ca — and; upahāsitaḥ — laughed at; kruddhaḥ — angered; parigham — His club; udyamya — raising; jaghne — He struck dead; tam — him; nṛmṇa-saṁsadi — in the auspicious assembly.
Translation: 
Thus insulted by Rukmī and ridiculed by the kings, Lord Balarāma was provoked to anger. In the midst of the auspicious wedding assembly, He raised His club and struck Rukmī dead.