Analysis of information sources in references of the Wikipedia article "Asanga" in English language version.
Born into a brāhmana family in Puruṣapura (modern-day Peshawar, Pakistan), Asanga originally studied under Sarvāstivāda (possibly Māhiṣasaka) teachers but converted to the Mahāyāna later in life.
Asanga, born in the Gandara region of present-day Pakistan in the city of Purusapura (the modern Peshawar) as the third son of Prasannasila (or Prakasila), was probably active around the fourth or fifth century.