Sargon of Akkad is largely accredited as the founder of the Akkadian Dynasty after invading many cities in the Mesopotamian area. His rule stretched from approximately 2270 to 2215 BC.
Sargon I ruled over the Assyrian Kingdom from ca. 1920 to 1881 BC.
Sargon II is perhaps the most well-known of the three. He ruled the Assyrian Kingdom in a period from 722 to 705 BC. Sargon II became widely known for his military campaigns against the former Persian Kingdom.
For more information about the three kings, please follow the links below.