His wife is Surūpa and his sons are Utatya, Samvartana and Brihaspati. He is a Manasaputra (wish-born-son) of Lord Brahma. Other accounts say that he married smrithy, the daughter of Daksha.
The name Angirasas is applied generically to several Puranic individuals and things; a class of Pitris, the ancestors of man according to Hindu Vedic writings, and probably descended from the sage Angiras. In the Rigveda, Agni is sometimes referred to as Angiras or as a descendant of Angiras (RV 1.1). In the Rigveda, Indra drives out cows from where they had been imprisoned by either a demon (Vala) or multiple demons (the Panis) and gifts them to the Angirasas (RV 3.31, 10.108 and a reference in 8.14). Mandala 6 of the Rigveda is attributed to a family of Angirasas.
Lord Buddha is said to be a descendant of Sage Angirasa in many Buddhist texts. Scholars like Dr. Eitel connects it to the Rishi Gautama.There too were Kshatiryas of other clans to whom members descend from Angirasa, to fulfill a childless king's wish.