Gautam
The Rig Veda has several 'hymns' that go with his name. Sage Gautam is one of the greatest amongst all Saptarshis (seven sages). He was the son of Rahugana. He married to Ahalya and had two sons Vamadeva and Nodhas both themselves discoverers of Mantras. Ramayan and Mahabharatha have references to Sage Gautam as he lived during these two Yugas.