Alex was quite the boy. He was one of those rulers who rode into battle at the front of him men, swinging a sword. None of this, "I'll just stay back here on this hill, so that I can coordinate the battle" bullshit for him. One time he almost gave his men heart attacks when he climbed up the wall of a city they were attacking and jumped down on the other side ... alone. He manages to stay alive until his personal guard got over the wall and backed him up, but it was a close thing. He was never quite the same after his horse died, though. He loved that horse more than any human being in the world. In the end, drink, rich food, sexual perversion, drugs killed him while he was ruling in Babylon. He just couldn't control his appetites, and when he had no battles to fight, he overindulged. Might have been poisoned, who knows. He had many enemies.