Aśmakī (Asmaki) was one of the wives of Śūra (Sura), belonging to the Vṛṣṇivaṃśa (the lineage of Vrishni). Devamīḍhuṣa (Devamidhusha), sired by Śūra, was born out of her womb.

Vāyupurāṇa(96.143)