Yajnavalkya is an ancient rishi who is associated with many texts in Sanskrit such as the Shatapatha Brahmana, Shukla Yajurveda and the Brihadaranyaka Upanishad. His discussions with Raja Janak of Videha are quite well-known.
This Hindupedia page mentions two things about his origins - One that he was an incarnation of Brahma and son of Brahmabahu and Second, he was the son of Devrata. But it also says that there may have been different people of the same name.
I want to know what is the correct genealogy of Yajnavalkya who was the guru of Raja Janak. I am aware of his two wives Maitreyi & Katyayini but would like to know about his progeny as well.