For some scholars such as Christopher I. Beckwith, Ashoka, whose name only appears in the Minor Rock Edicts, should be differentiated from the ruler Piyadasi, or "Devanampiya" Piyadasi (i.e. "Beloved of the Gods Piyadasi", "Beloved of the Gods" being a fairly widespread title for "King"), who is named as the author of the Major Pillar Edicts and the Major Rock Edicts. This inscriptional evidence may suggest that these were two different rulers. According to him, Piyadasi was living in the 3rd century BCE, probably the son of Chandragupta Maurya known to the Greeks as Amitrochates, and only advocating for piety ("Dharma") in his Major Pillar Edicts and Major Rock Edicts, without ever mentioning Buddhism, the Buddha or the Samgha. Also, the geographical spread of his inscription shows that Piyadasi ruled a vast Empire, contiguous with the Seleucid Empire in the West.