Datis and Artaphernes, the generals appointed by Persian king Darius I to command the punative expedition against Athens and Eritea.
The Mede general Datis and Persian general Artaphernes commanded the Persian forces.
The Persian leader defeated by the Greeks was Darius.
The communist leader who defeated Hitler in the battle of stalingrad was Joseph Stalin. He was the leader of the USSR who defeated Germany in the battle of Stalingrad.
Datis.
Which battle did you have in mind?
Spartans did not fight at the Battle of Marathon. The fight was solely between the Persians, and the Athenians and Plataeans.
Datis the Mede.
Napoleon Bonaparte.
Xerxes was the Persian, not the Athenian leader. No leader at the battle sank most of anyone's fleet.
Xerxes I of Persia .
Well, seeing as how this question is filled under Alexander the Great, I would assume that you should know that the leader of Macedonia, Alexander the Great, defeated the Persian empire and held the title and office of the king of Persians.
William Wallace