Versions

In some versions, she is said to be the daughter of the sea god since she emerged from the sea.

http://oce8.blogspot.com/search/label/Varuni

http://w0m1.blogspot.com/search/label/Vibh%C4%81var%C4%AB

In the Garuda Purana, Linga Purana and Padma Purana she is said to have been born as the daughter of the divine sage Bhrigu and his wife Khyaati and was named "Bhargavi." 

http://usju.blogspot.com/search/label/Bhrigu