Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 42

Sanskrit:

चित्तिस्त्वथर्वण: पत्नी लेभे पुत्रं धृतव्रतम् ।दध्यञ्चमश्वशिरसं भृगोर्वंशं निबोध मे ॥ ४२ ॥

ITRANS:

cittis tv atharvaṇaḥ patnīlebhe putraṁ dhṛta-vratamdadhyañcam aśvaśirasaṁbhṛgor vaṁśaṁ nibodha me

Translation:

Citti, wife of the sage Atharvā, gave birth to a son named Aśvaśirā by accepting a great vow called Dadhyañca. Now you may hear from me about the descendants of the sage Bhṛgu.

Purport:

The wife of Atharvā, known as Citti, is also known as Śānti. She was the eighth daughter of Kardama Muni.