Achaeus was a Greek

Ancient Greece

Ancient Greece is a civilization belonging to a period of Greek history that lasted from the Archaic period of the 8th to 6th centuries BC to the end of antiquity. Immediately following this period was the beginning of the Early Middle Ages and the Byzantine era. Included in Ancient Greece is the...

 Macedonian nobleman and was the second son born to King and founder of the Seleucid Empire

Seleucid Empire

The Seleucid Empire was a Greek-Macedonian state that was created out of the eastern conquests of Alexander the Great. At the height of its power, it included central Anatolia, the Levant, Mesopotamia, Persia, today's Turkmenistan, Pamir and parts of Pakistan.The Seleucid Empire was a major centre...

 Seleucus I Nicator

Seleucus I Nicator

Seleucus I was a Macedonian officer of Alexander the Great and one of the Diadochi. In the Wars of the Diadochi that took place after Alexander's death, Seleucus established the Seleucid dynasty and the Seleucid Empire...

 and Persian noblewoman Apama I

Apama

Apama , sometimes known as Apama I or Apame I was the wife of the first ruler of the Seleucid Empire, Seleucus I Nicator. They married at Susa in 324 BC...

. Achaeus was of Greek and Persian

Persian people

The Persian people are part of the Iranian peoples who speak the modern Persian language and closely akin Iranian dialects and languages. The origin of the ethnic Iranian/Persian peoples are traced to the Ancient Iranian peoples, who were part of the ancient Indo-Iranians and themselves part of...

 descent. He had three siblings: one brother the Seleucid King Antiochus I Soter

Antiochus I Soter

Antiochus I Soter , was a king of the Hellenistic Seleucid Empire. He reigned from 281 BC - 261 BC....

 and two sisters: Apama and Laodice. Achaeus is sometimes called Achaeus the Elder, to distinguish him from his grandson the Seleucid General, Achaeus

Achaeus (general)

Achaeus was a general and later a separatist ruler of part of the Greek Seleucid kingdom. He was the son of Andromachus, whose sister Laodice II, married Seleucus Callinicus, the father of Antiochus III the Great. Achaeus himself married Laodice of Pontus, one of the daughters to Laodice and...

.

Achaeus was a wealthy man and owned estates in Anatolia

Anatolia

Anatolia is a geographic and historical term denoting the westernmost protrusion of Asia, comprising the majority of the Republic of Turkey...

. Achaeus was a benefactor for those who assisted during the war against the Galatia

Galatia

Ancient Galatia was an area in the highlands of central Anatolia in modern Turkey. Galatia was named for the immigrant Gauls from Thrace , who settled here and became its ruling caste in the 3rd century BC, following the Gallic invasion of the Balkans in 279 BC. It has been called the "Gallia" of...

ns. The Seleucid military campaign against the Galatians took place between 269 BC-267 BC, during the reign of Antiochus I. Those who had assisted Antiochus I and Achaeus were taken prisoner and Achaeus paid for their ransom to be released. Antiochus I won this military campaign. Those who had Achaeus as their benefactor inscribed their benefaction on a stone stele and placed it in the sanctuary of Zeus

Zeus

In the ancient Greek religion, Zeus was the "Father of Gods and men" who ruled the Olympians of Mount Olympus as a father ruled the family. He was the god of sky and thunder in Greek mythology. His Roman counterpart is Jupiter and his Etruscan counterpart is Tinia.Zeus was the child of Cronus...

 at Babakome and that of Apollo

Apollo

Apollo is one of the most important and complex of the Olympian deities in Greek and Roman mythology...

 at Kiddioukome. The descendants of those who were saved by Achaeus for all time were granted a seat of honor at the public festivals and sacrificed to Achaeus every year an ox in the sanctuary of Zeus.

Achaeus married an unnamed Greek woman. From his wife, she had born him four children who were:

• Daughter, Antiochis
  Antiochis
  The name Antiochis, in Greek Ἀντιoχίς is the female name of Antiochus. Antiochis in Greek antiquity may refer to:-Hellenistic queens consort:*Antiochis, daughter of Achaeus, married to Attalus, and the mother of Attalus I, king of Pergamon...
  
  
• Son, Alexander
  Alexander (grandson of Seleucus I Nicator)
  Alexander was an Anatolian nobleman of Greek Macedonian and Persian descent who was a Seleucid official.Alexander was the first son born to Achaeus by an unnamed Greek mother. His father Achaeus was a wealthy nobleman who owned estates in Anatolia. His family had power in Anatolia with strong...
  
  
• Daughter, Laodice I
  Laodice I
  Laodice I was an Anatolian noblewoman who was a close relative of the early Seleucid Dynasty and was the first wife of the Seleucid Greek King Antiochus II Theos. -Family Background:...
  
  
• Son, Andromachus
  Andromachus
  Andromachus was an Anatolian nobleman of Greek Macedonian and Persian descent. Andromachus’ father was a wealthy nobleman who owned estates in Anatolia and his family had power in Anatolia with strong royal connections. Andromachus was the second son of Achaeus by an unnamed Greek mother and a...
  
  

Sources

• J.D. Grainger, A Seleukid prosopography and gazetteer, BRILL, 1997
• M.M. Austin, The Hellenistic world from Alexander to the Roman conquest: a selection of ancient sources in translation, Cambridge University Press, 2006
• Biographical information of Apama at Livius.org
• Biographical information of Laodice I at Livius.org
• Article on Laodice no. 2 at Ancient Library
• Biographical information of Seleucus I Nicator at Livius.org