Archelaus I of Macedon

Archelaus I (; ) was a king of Macedon from 413 to 399 BC. He was a capable and beneficent ruler, known for the sweeping changes he made in state administration, the military, and commerce. By the time that he died, Archelaus had succeeded in converting Macedon into a significantly stronger power.  Thucydides credited Archelaus with doing more for his kingdom's military infrastructure than all of his predecessors together.