King Bindusara(320 BCE to 268 BCE) was the father of Ashoka.
Ashoka was born in 304 BCE by King Bindusara Maurya and his queen Shubhadrangi (Dharma).
Bindusara Maurya was only of age 16 years when Ashoka born.
Bindusara Maurya(320 BCE to 268 BCE) was son of great warrior prince Chadragupt Maurya(340 BCE to 298 BCE) who was the founder of the Maurya Empire and ruled Akhand Bharatavarsa from 320 BCE to 298 BCE.