Cassander in the context of "Demetrius I of Macedon"

The Antigonid dynasty (/ænˈtɪɡoʊnɪd/; Ancient Greek: Ἀντιγονίδαι) was a Macedonian Greek royal house which ruled the kingdom of Macedon during the Hellenistic period. Founded by Antigonus I Monophthalmus, a general and successor of Alexander the Great, the dynasty first came to power after the Battle of Salamis in 306 BC and ruled much of Hellenistic Greece from 294 until their defeat at the Battle of Pydna in 168 BC (Third Macedonian War), after which Macedon came under the control of the Roman Republic.

The wars of the Diadochi witnessed the fall of the Argead dynasty in Macedon resulting in a power vacuum, which the Antigonid and Antipatrid dynasties sought to occupy. The Antigonid family first rose to power when Demetrius I Poliorcetes, son of Antigonus I, ousted Cassander's governor of Athens in 306 BC giving his father control over a land spanning from the Aegean Sea to the Middle East. Despite the subsequent instability and loss of the Asian territory, the family managed to maintain its power in mainland Greece and the islands, with Antigonus II Gonatas ultimately solidifying Antigonid rule over Hellenistic Macedon –a territory also known as the Antigonid Empire. Antigonus III Doson further expanded Macedonian influence in southern Greece reestablishing the Hellenic Alliance with himself as the president. Under Philip V, Antigonid Macedon first came into conflict with Rome, which had become a decisive power in the eastern Mediterranean. In the second century BC, the last Antigonid king, Perseus, became known as the champion of Greek resistance against Rome, albeit Rome's control over Antigonid Greece began to steadily expand, culminating in the fall of the dynasty in 168.

Antipater (/ænˈtɪpətər/; Ancient Greek: Ἀντίπατρος, romanized: Antipatros, lit. 'like the father'; c. 400 BC – 319 BC) was a Macedonian general, regent and statesman under the successive kingships of Philip II of Macedon and his son, Alexander the Great. In the wake of the collapse of the Argead house, his son Cassander eventually ruled Macedonia as a king in his own right.

Probably active during the reign of Perdiccas III of Macedon, most of Antipater's political career was as one of Philip II's foremost Hetairoi. After Philip II's death, he helped Alexander secure the throne. When Alexander began his wars against the Persian Empire in 336 BC, Antipater remained behind to hold Macedon and Greece as regent. While Alexander was campaigning, Antipater crushed revolts, like that of King Agis III of Sparta, and managed Greek affairs. After the Death of Alexander the Great in 323 BC, Antipater was reconfirmed in his position as viceroy of Europe in the Partition of Babylon.

The Antipatrid dynasty (/ænˈtɪpətrɪd/; Ancient Greek: Ἀντιπατρίδαι) was a Dorian Greek dynasty of the ancient Greek kingdom of Macedon founded by Cassander, the son of Antipater, who declared himself King of Macedon in 305 BC. This dynasty did not last long; in 294 BC it was swiftly overthrown by the Antigonid dynasty.

Pella (Greek: Πέλλα) was an ancient city located in Central Macedonia, Greece. It served as the capital of the ancient Greek kingdom of Macedon starting from 4th century BC up until the Roman conquest in 168 BC. Currently, it is located 1 km outside the modern town of Pella.

Pella was probably founded at the beginning of the 4th century BC by Archelaus I as the new capital of Macedon, supplanting Aigai, which still remained the burial place for the kings and the royal family. Pella was the birthplace of Philip II in 382 BC, and of Alexander the Great, his son, in 356 BC. Pella quickly became the largest and richest city in Macedonia and flourished particularly under the rule of Cassander and Antigonus II. In 168 BC the city was sacked by the Romans during the Third Macedonian War and entered a long period of decline, its importance eclipsed by that of the nearby Thessalonica.

The Diadochi were the rival generals, families, and friends of Alexander the Great who fought for control over his empire after his death in 323 BC. The Wars of the Diadochi mark the beginning of the Hellenistic period from the Mediterranean Sea to the Indus River Valley.

The most notable Diadochi include Ptolemy, Antigonus, Cassander, and Seleucus as the last remaining at the end of the Wars of the Successors, ruling in Egypt, Asia-Minor, Macedon and Persia respectively, with Ptolemaic, Antigonid and Seleucid dynasties lasting several centuries.

Pyrrhus (/ˈpɪrəs/ PIRR-əss; Ancient Greek: Πύρρος Pýrrhos; 319/318–272 BC) was a Greek king and statesman of the Hellenistic period. He was king of the Molossians, of the royal Aeacid house, and later he became king (Malalas also called him toparch) of Epirus. He was one of the strongest opponents of early Rome, and had been regarded as one of the greatest generals of antiquity. Several of his victorious battles caused him unacceptably heavy losses, from which the phrase "Pyrrhic victory" was coined.

Pyrrhus became king of Epirus in 306 BC at the age of 13, but was dethroned by Cassander four years later. He saw action during the Wars of the Diadochi and regained his throne in 297 BC with the support of Ptolemy I Soter. He co-ruled Macedon together with Lysimachus after driving out Demetrius in 288 BC. In 284 BC, he was driven out of Macedon by Lysimachus. During the eponymous Pyrrhic War of 280–275 BC, Pyrrhus fought Rome at the behest of Tarentum, scoring costly victories at Heraclea and Asculum. He proceeded to take over Sicily from Carthage, but after some initial success, he was soon driven out and returned to Italy where he lost all his gains after the Battle of Beneventum in 275 BC.

Glaucias (Ancient Greek: Γλαυκίας; ruled c. 335 – c. 295 BC) was a ruler of the Taulantian kingdom, situated in modern day Albania, which dominated southern Illyrian affairs in the second half of the 4th century BC. Glaucias is first mentioned as bringing a considerable force to the assistance of Bardylis' son Cleitus, an Illyrian prince who revolted against Alexander the Great, in the battle of Pelium 335 BC. They were, however, both defeated, and Cleitus was forced to take refuge within the Taulantian territories, whither Alexander did not pursue him, his attention being called elsewhere by the news of the revolt of Thebes.

We next hear of Glaucias, nearly 20 years later, as affording an asylum to the infant Pyrrhus, when his father Aeacides was driven out of Epirus; Glaucias' wife Beroea belonged to the Molossian Aeacidae. By this measure he gave offence to Cassander, who sought to gain possession of Epirus for himself, and who in vain offered Glaucias 200 talents to give up the child.

Antigonus I Monophthalmus (Ancient Greek: Ἀντίγονος Μονόφθαλμος Antigonos Monophthalmos, "Antigonus the One-Eyed"; 382 – 301 BC) was a Macedonian Greek general and successor of Alexander the Great. A prominent military leader in Alexander's army, he went on to control large parts of Alexander's former empire. He assumed the title of basileus (king) in 306 BC and reigned until his death. He was the founder of the Antigonid dynasty, which ruled over Macedonia until its conquest by the Roman Republic in 168 BC.

Antigonus likely served under Philip II of Macedon. He took part in Alexander's invasion of Achaemenid Persia and was named satrap of Phrygia. After Alexander's death in 323 BC, he also received Pamphylia and Lycia in accordance with the Partition of Babylon. However, he later incurred the enmity of Perdiccas, the regent of Alexander's empire, and was driven from Phrygia. He fled to Greece and formed an alliance with Antipater, later joined by Ptolemy, against Perdiccas. Perdiccas was murdered by his own officers in 320 BC, and Antipater was elected the new regent. During a series of wars between Alexander's successors, Antigonus briefly emerged as the most powerful of the Diadochi, ruling over Greece, Asia Minor, Syria, Phoenicia and northern Mesopotamia. Cassander, Seleucus, Ptolemy and Lysimachus formed a coalition against him, which culminated in his decisive defeat and death at the Battle of Ipsus in 301 BC. His kingdom was divided up by Lysimachus and Seleucus, but his son Demetrius survived and went on to seize control of Macedonia in 294 BC.