Chandragupta Maurya (reign: 321–298 BCE) was the founder of the Maurya Empire in ancient India. He was born in a humble family, orphaned and abandoned, raised as a son by another pastoral family, was picked up, taught and counselled by Chanakya – a Hindu Brahmin also known as Kautilya and the author of the Arthashastra. Chandragupta with his counsellor Chanakya thereafter together built one of the largest empires ever on the Indian subcontinent. According to Jain sources, he then renounced it all, became a monk in the Jain tradition. His grandson was emperor Ashoka, famous for his historic pillars and for his role in helping spread Buddhism outside of ancient India. Chandragupta's life and accomplishments are described in ancient Greek, Hindu, Buddhist and Jain texts, but they vary significantly. In Greek and Latin accounts, Chandragupta is referred to as Sandrokottos or Androcottus.