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Deriv; Relief of Darius in Persepolis and roaring lion frieze found in the Apadana (Darius the Great's palace) in Susa.

Did Darius Hijack the Persian Throne? Ancient Coup and the Rise of Darius the Great – Part I

Cambyses II began his rule around 530 BCE, maybe 529 BCE, and his reign ended in 522 BCE. Not much is known about Cambyses since he left no inscriptions of his own. Only Herodotus and the Egyptians...
Some of the shackled skeletons found in a mass grave near Athens, Greece

Archaeologists Speculate Shackled Skeletons Were Slain Comrades of Greek Coup Leader Cylon

Archaeologists are speculating that 36 skeletons bound in irons and buried ignominiously in a mass grave were comrades of Cylon, who tried but failed to become the tyrant of Athens in a 632 BC coup...