Saptarshis
Saptarshis
Visvamitra
Visvamitra also known as Brahmarshi or Rajarshi because of him being a successor to King Kusha, He gave up on his inheritance to tread the path of Exploration in quest of Knowledge. He is known to have Authored most parts of Rigveda Including Gayatri Mantra.Visvamitra
Jamadagni
Gautama
Vashistha
Kashyapa
Bharadwaja
Atri
Special Mention Charvaka and Kanad