Chandragupta Maurya (350–295 BCE) was the founder of the Maurya Empire, which ruled over a geographically extensive empire based in Magadha. He reigned from 320 BCE to 298 BCE. The Magadha kingdom expanded to become an empire that reached its peak under the reign of his grandson, Ashoka the Great, from 268 BCE to 231 BCE. The nature of the political formation that existed in Chandragupta's time is not certain. The Mauryan empire was a loose-knit one with large autonomous regions within its limits.