Alexander the Great Alexander was the son of Philip II of Macedon, a small state in northern Greece. Philip was an aggressive ruler who warred with his neighbors and eventually conquered all Greece. Although much of his time was taken up with fighting, he did not neglect his family, and young Alexander was especially favored having been taught by the great Aristotle as his tutor. After his father Philip II was assassinated, at the age of 19, Alexander became king. By that time he had accompanied his father several times in battle and had commanded detachments of the army with great skill and bravery. It was particularly noticeable how Alexander would rough it with his men, sharing their toils and discomforts, and this won their love and reverence. Alexander only made it back to Babylon where he became suddenly sick and died. No one is sure what he died from, but many suspect poison. Upon his death the great empire he had built was divided up amongst his generals, called the Diadochi. The Diadochi ended up fighting each other for many years as the empire fell apart. The career of Alexander the Great was one of the most amazing in all history. In ten years he expanded his small kingdom into an empire covering all the lands between Greece and India.