Vasu is the son of Maharṣi (Maharshi; Great Sage) Vaśiṣṭha (Vasistha). Upamanyu was the son of Vasu. In the Veda, Maharṣi Upamanyu is referred to as a learned ṛṣi (rishi; seer or sage) well-versed in the Veda(s). His descendants are known as Aupamanyava.