Sirras of Lyncestian origins, was a member of the royalty, perhaps prince-regent, of Lyncestis in Upper Macedonia

Upper Macedonia

Upper Macedonia is a geographical and tribal term to describe the regions that became part of the kingdom of Macedon in the early 4th century BC. From that date, its inhabitants were politically equal to Lower Macedonians...

. Some suggest that he was an Illyrian because Plutarch

Plutarch

Plutarch then named, on his becoming a Roman citizen, Lucius Mestrius Plutarchus , c. 46 – 120 AD, was a Greek historian, biographer, essayist, and Middle Platonist known primarily for his Parallel Lives and Moralia...

 mentions that his daughter, Eurydice was derisively called by her enemies "a thrice barbarian Illyrian",. N.G.L.Hammond disagrees with this assessment , and so does Ian Worthington , both of whom consider Sirras a Lyncestian. The actual year of his birth is not known but it is suggested around the year 437 BC.

Sirras took part in the Pelopponesian War as an ally of Athens

Athens

Athens , is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, as its recorded history spans around 3,400 years. Classical Athens was a powerful city-state...

, in the side of Arrhabaeus I of Lyncestia against Perdiccas

Perdiccas

Perdiccas was one of Alexander the Great's generals. After Alexander's death in 323 BC he became regent of all Alexander's empire.Arrian tells us he was son of Orontes, a descendant of the independent princes of the Macedonian province of Orestis...

 of Macedonia. In 423 BC

423 BC

Year 423 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Atratinus and Ambustus...

 Arrhabaeus became an ally of Sirras. This was reinforced when Sirras married the daughter of Arrhabaeus. At first the Spartans avoided involvement in Macedon's war with Arrhabaeus, but in 423 BC they joined an expedition which ended with ignominious retreat by the Macedonians and a brilliantly contrived escape of the Spartans.

During the end of the 5th century BC, Sirras was once again at war with Lower Macedonia for a claim on Lyncestis. Around the end of the reign of Archelaus I of Macedon

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...

, c.400/399 BC, a new war developed between the two kings for the Lyncestian case. As in earlier time, Arrhabaeus and Sirras were also allies. The results of this war are not known, but later events show that no change happened in the existing case.

Sirras' reign came to an end in 393 BC

393 BC

Year 393 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Poplicola and Cornelius...

 when his royal dynasty was overthrown by the Illyrian Bardyllis

Bardyllis

Bardyllis was a king of the Dardanian Kingdom and probably its founder.Bardyllis created one of the most powerful Illyrian states, that of the Dardanians...

. Sirras' daughter was Eurydice of Macedon, Philip II of Macedon

Philip II of Macedon

Philip II of Macedon "friend" + ἵππος "horse" — transliterated ; 382 – 336 BC), was a king of Macedon from 359 BC until his assassination in 336 BC. He was the father of Alexander the Great and Philip III.-Biography:...

's mother. King Amyntas III of Macedon

Amyntas III of Macedon

Amyntas III son of Arrhidaeus and father of Philip II, was king of Macedon in 393 BC, and again from 392 to 370 BC. He was also a paternal grandfather of Alexander the Great....

 married the young princess Eurydice at around 390 BC

390 BC

Year 390 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Tribunate of Ambustus, Longus, Ambustus, Fidenas, Ambustus and Cornelius...

, probably as part of the secured peace settlement with the Lyncestians, after he liberated them from Bardylis.