Bhrigu
Maharishi Bhrigu (Sanskrit: महर्षि भृगु) was one of the seven great sages, the Saptarshis, in ancient India, one of the many Prajapatis (the facilitators of Creation) created by Brahma (The God of Creation), the first compiler of predictive astrology, and also the author of Bhrigu Samhita, the astrological (Jyotish) classic written during the Vedic period, Treta yuga.
Bhrigu is a ManasaPutra (mind-born-son) of Lord Brahma, who simply wished him into existence, to assist in the process of creation, for this reason he is also considered one of the Prajapatis.
He was married to Khyati, the daughter of Daksha. He had two sons by her, named Dhata and Vidhata. His daughter Sri or Shri, married Lord Vishnu (Narayana).
He has one more son, who is better known than Bhrigu himself – Shukra, learned sage and guru of the asuras. The sage Chyavana is also said to be his son.
Read more about Bhrigu: In Scriptures, Bhrigu Samhita, Bhrigu in Buddhism, Testing The Divine Trinity