Who was Alexander before Alexander

Last updated: April 1, 2026

Quick Answer: Alexander III of Macedon was an ambitious young prince educated by Aristotle who inherited the throne at age 20 in 336 BC. Before his legendary conquests, he consolidated power in Macedonia and unified Greece under Macedonian control, then launched his Persian campaign at age 22.

Key Facts

Early Life and Royal Heritage

Alexander III was born in 356 BC in Pella, the capital of Macedonia, to King Philip II and Queen Olympias. His father was already renowned throughout Greece as a military innovator and ambitious expansionist who had transformed Macedonia from a minor kingdom into a major power. Philip had introduced the phalanx formation—a revolutionary military tactic using long spears and tight formations—that made Macedonian forces nearly unbeatable. Growing up, young Alexander witnessed his father's military campaigns and political machinations, immersed in the culture of Macedonian warfare and statecraft. This environment shaped his ambitions and competitive drive from childhood.

Education Under Aristotle

From age 13, Alexander was tutored by Aristotle, one of the greatest philosophers and scientists of antiquity. For three years, Aristotle provided comprehensive instruction in philosophy, ethics, medicine, biology, and rhetoric. This intellectual training distinguished Alexander from typical military princes. He developed a fascination with knowledge, science, and the cultures he would later encounter. Aristotle's teachings on reason, natural philosophy, and his collections of knowledge profoundly influenced Alexander's worldview and his later practice of bringing scholars and historians on his campaigns to document his conquests.

His Father's Shadow and Inheritance

Philip II's assassination in 336 BC thrust 20-year-old Alexander into the Macedonian kingship. At this young age, Alexander inherited not only a throne but a powerful, experienced military machine, a unified Macedonia, and dominion over several Greek city-states. Philip had already crushed Athenian resistance at the Battle of Chaeronea in 338 BC and established a coalition called the League of Corinth that nominally placed Greece under Macedonian hegemony. However, Alexander's succession was precarious—various Greek cities saw his youth as an opportunity to rebel. His mother Olympias and court rivals threatened his position.

Consolidation and Unification of Greece

Before Alexander could become a legendary conqueror, he had to secure his kingdom. In his first years, he ruthlessly eliminated potential rivals, crushed rebellions in Macedonia, and restored control over rebellious Greek city-states. When Thebes revolted in 335 BC, Alexander besieged and destroyed the city as a warning to other potential rebels. He systematically reunified Greece under Macedonian control and secured his position as hegemon through a combination of military victories and diplomatic negotiations. Only after establishing undisputed control over Macedonia and Greece did Alexander prepare for his grand ambition: the conquest of the Persian Empire.

Related Questions

How did Aristotle influence Alexander's conquests?

Aristotle's education instilled in Alexander a passion for knowledge, science, and understanding different cultures. Alexander brought scholars and historians on his campaigns, founded cities as centers of learning, and adopted Greek customs and philosophy as tools of cultural conquest and integration.

What was Philip II's greatest military achievement?

Philip II's greatest achievement was creating the phalanx formation and using it to unify Macedonia and defeat Greek city-states, particularly at the Battle of Chaeronea in 338 BC. This military innovation and his political consolidation directly enabled Alexander's later conquests.

How did Alexander consolidate power after inheriting the throne?

Alexander secured his position by quickly eliminating rivals within Macedonia, crushing rebellions in Greek city-states, and destroying Thebes as a warning to potential rebels. He then unified Greece under his command before launching his Persian campaign at age 22.

Sources

  1. Wikipedia - Alexander the Great CC-BY-SA-4.0
  2. Wikipedia - Philip II of Macedon CC-BY-SA-4.0