The first government of ancient Macedonia was established by the Argead dynasty of Macedonian kings during the Archaic period (8th–5th centuries BC). The early history of the ancient kingdom of Macedonia is obscure because of shortcomings in the historical record; little is known of governmental institutions before the reign of Philip II during the late Classical period (480–336 BC). These bureaucratic organizations evolved in complexity under his successor Alexander the Great and the subsequent Antipatrid and Antigonid dynasties of Hellenistic Greece (336–146 BC). Following the Roman victory in the Third Macedonian War over Perseus of Macedon in 168 BC, the Macedonian monarchy was abolished and replaced by four client state republics. After a brief revival of the monarchy in 150–148 BC, the Fourth Macedonian War resulted in another Roman victory and the establishment of the Roman province of Macedonia.
It is unclear if there was a formally established constitution dictating the laws, organization, and divisions of power in ancient Macedonia's government, although some tangential evidence suggests this. The king () served as the head of state and was assisted by his noble companions and royal pages. Kings served as the chief judges of the kingdom, although little is known about Macedonia's judiciary. The kings were also expected to serve as high priests of the nation, using their wealth to sponsor various religious cults. The Macedonian kings had command over certain natural resources such as gold from mining and timber from logging. The right to mint gold, silver, and bronze coins was shared by the central and local governments.
The Macedonian kings served as the commanders-in-chief of Macedonia's armed forces, while it was common for them to personally lead troops into battle. Surviving textual evidence suggests that the ancient Macedonian army exercised its authority in matters such as the royal succession when there was no clear heir apparent to rule the kingdom. The army upheld some of the functions of a popular assembly, a democratic institution that otherwise existed in only a handful of municipal governments within the Macedonian commonwealth: the Koinon of Macedonians. With their mining and tax revenues, the kings were responsible for funding the military, which included a navy that was established by Philip II and expanded during the Antigonid period.
Sources and historiography
The earliest known government in ancient Macedonia was their monarchy, which lasted until 167 BC when it was abolished by the Romans. Written evidence about Macedonian governmental institutions made before Philip II of Macedon's reign () is both rare and non-Macedonian in origin. The main sources of early Macedonian historiography are the works of the 5th-century BC historians Herodotus and Thucydides, the 1st-century AD Diodorus Siculus, and the 2nd-century AD Justin. Contemporary accounts given by those such as Demosthenes were often hostile and unreliable; even Aristotle, who lived in Macedonia, provides us with terse accounts of its governing institutions. Polybius was a contemporary historian who wrote about Macedonia, while later historians include Livy, Quintus Curtius Rufus, Plutarch, and Arrian. The works of these historians affirm the hereditary monarchy of Macedonia and basic institutions, yet it remains unclear if there was an established constitution for Macedonian government. The main textual primary sources for the organization of Macedonia's military as it existed under Alexander the Great include Arrian, Quintus Curtius, Diodorus, and Plutarch, while modern historians rely mostly on Polybius and Livy for understanding detailed aspects of the Antigonid-period military.
Division of power
At the head of Macedonia's government was the king (). From at least the reign of Philip II the king was assisted by the royal pages (), bodyguards (), companions (), friends (), an assembly that included members of the military, and magistrates during the Hellenistic period. Evidence is lacking for the extent to which each of these groups shared authority with the king or if their existence had a basis in a formal constitutional framework. Before the reign of Philip II, the only institution supported by textual evidence is the monarchy. In 1931, Friedrich Granier was the first to propose that by the time of Philip II's reign, Macedonia had a constitutional government with laws that delegated rights and customary privileges to certain groups, especially to its citizen soldiers, although the majority of evidence for the army's alleged right to appoint a new king and judge cases of treason stems from the reign of Alexander the Great (). Pietro De Francisci refuted these ideas and advanced the theory that the Macedonian government was an autocracy ruled by the whim of the monarch, although this issue of kingship and governance is still unresolved in academia.
Institutions Kingship and the royal court
The Macedonian hereditary monarchy existed since at least the time of Archaic Greece, perhaps evolving from a tribal system, and with roots in Mycenaean Greece in view of its seemingly Homeric aristocratic attributes. Thucydides wrote that in previous ages Macedonia was divided into small tribal regions, each with its own petty king. The tribes of Lower Macedonia eventually coalesced under one great king, who exercised power as an overlord over the lesser kings of Upper Macedonia. The Argead dynasty lasted from the reign of Perdiccas I of Macedon until that of Alexander IV of Macedon (), supplanted by the Antigonid dynasty during the Hellenistic period. The direct line of father-to-son succession was broken after the assassination of Orestes of Macedon () in 396 BC, allegedly by his regent and successor Aeropus II of Macedon (), clouding the issue of whether primogeniture was the established custom or if there was a constitutional right for an assembly of the army or of the people to choose another king. It is also unclear whether certain male offspring were considered more legitimate than others, since Archelaus I of Macedon () was the son of Perdiccas II of Macedon () and a slave woman, although Archelaus succeeded the throne after murdering his father's designated heir apparent and son from another mother.
Historical sources confirm that the Macedonian kings before Philip II at least upheld the privileges and responsibilities of hosting foreign diplomats, initiating the kingdom's foreign policies, and negotiating deals such as alliances with foreign powers. After the Greek victory at the Battle of Salamis in 480 BC, the Persian commander Mardonius had Alexander I of Macedon () sent to Athens as a chief envoy to orchestrate an alliance between the Achaemenid Empire and Athens. The decision to send Alexander was based on his marriage alliance with a noble Persian house and his previous formal relationship with the city-state of Athens. With their ownership of natural resources including gold, silver, timber, and royal land, the early Macedonian kings were also capable of bribing foreign and domestic parties with impressive gifts.
Little is known about the judicial system of ancient Macedonia except that the king acted as the chief judge of the kingdom. The Macedonian kings were also supreme commanders of the military, with early evidence including not only Alexander I's role in the Greco-Persian Wars but also with the city-state of Potidaea accepting Perdiccas II of Macedon as their commander during their rebellion against the Delian League of Athens in 432 BC. In addition to the esteem won by serving as Macedonia's supreme commander, Philip II was also highly regarded for his acts of piety in serving as the high priest of the nation. He performed daily ritual sacrifices and led religious festivals. Alexander imitated various aspects of his father's reign, such as granting land and gifts to loyal aristocratic followers. However, he lost some core support among them for adopting some of the trappings of a Persian monarch, a "lord and master" as Carol J. King suggests, instead of a "comrade-in-arms" as was the traditional relationship of Macedonian kings with their companions. His father Philip II had already shown signs of being influenced by the Persian Empire when he adopted similar institutions, such as having a Royal Secretary, royal archive, royal pages, and a throne, although there is some scholarly debate as to the level of Persian influence in Philip's court.
Royal pages
The royal pages were adolescent boys and young men conscripted from aristocratic households and serving the kings of Macedonia perhaps from the reign of Philip II onward, although more solid evidence for their presence in the royal court dates to the reign of Alexander the Great. Royal pages played no direct role in high politics and were conscripted as a means to introduce them to political life. After a period of training and service, pages were expected to become members of the king's companions and personal retinue. During their training, pages were expected to guard the king as he slept, supply him with horses, aid him in mounting his horse, accompany him on royal hunts, and serve him during (i.e. formal drinking parties). While conscripted pages would have looked forward to a lifelong career at court or even a prestigious post as a governor, they can also be regarded as hostages held by the royal court in order to ensure the loyalty and obedience of their aristocratic fathers. The abusive punishment of pages, such as flogging, carried out by the king at times, led to intrigue and conspiracy against the Crown, as did the frequent homosexual relations between the pages and the elite, sometimes with the king. Although there is little evidence for royal pages throughout the Antigonid period, it is known that a group of them fled with Perseus of Macedon () to Samothrace following his defeat by the Romans in 168 BC.
Bodyguards Royal bodyguards served as the closest members to the king at court and on the battlefield. They were split into two categories: the or the , a type of ancient special forces usually numbering in the hundreds, and a smaller group of men handpicked by the king either for their individual merits or to honor the noble families to which they belonged, respectively. Therefore, the bodyguards, limited in number and forming the king's inner circle, were not always responsible for protecting the king's life on and off the battlefield; their title and office was more a mark of distinction, perhaps used to quell rivalries between aristocratic houses.
Companions, friends, councils, and assemblies
The companions, including the elite companion cavalry and infantry, represented a substantially larger group than the king's bodyguards. The ranks of the companions were greatly increased during the reign of Philip II when he expanded this institution to include Upper Macedonian aristocrats as well as Greeks. The most trusted or highest ranking companions formed a council that served as an advisory body to the king, called the synedrion. A small amount of evidence also suggests that an assembly of the army during times of war and a people's assembly during times of peace existed in ancient Macedonia. The first recorded instance dates to 359 BC, when Philip II called together a number of assemblies to address them with speech and raise their morale following the death of Perdiccas III of Macedon () in battle against the Illyrians.