What leader, born in Pella in 356 BC, conquered the army of Darius III in 331 BC?
Battle of Gaugamela The Battle of Gaugamela ( ; Greek: Γαυγάμηλα ), also called the Battle of Arbela (Greek: Ἄρβηλα ), was the decisive battle of Alexander the Great's invasion of the Persian Achaemenid Empire. In 331 BC Alexander's army of the Hellenic League met the Persian army of Darius III near Gaugamela, close to the modern city of Dohuk (Iraqi Kurdistan). Even though heavily outnumbered, Alexander emerged victorious due to his army's superior tactics and his deft employment of light infantry. It was a decisive victory for the Hellenic League and led to the fall of the Achaemenid Empire.
Pixodarus Pixodarus (in Greek Πιξώδαρoς; ruled 340–335 BC), was a ruler of Caria, nominally the Persian Satrap, who enjoyed the status of king or dynast by virtue of the powerful position his predecessors of the House of Hecatomnus (the Hecatomnids) created when they succeeded the assassinated Persian Satrap Tissaphernes in the Carian satrapy.