One of the ṛṣivaṁśa (rishivamsa; hereditary or disciple-wise line of sages) belonging to the gotra (clan) of Maharṣi (Maharshi; Great Sage) Aṇgirā (Angira), as mentioned in the Purāṇa (Purana; Mythological Scriptures). Through the genealogical or disciple-wise line from Aṇgirā, they  are also known as Āṇgirasa (Angirasa).