Laodice was a Princess of Pontus

Pontus

Pontus or Pontos is a historical Greek designation for a region on the southern coast of the Black Sea, located in modern-day northeastern Turkey. The name was applied to the coastal region in antiquity by the Greeks who colonized the area, and derived from the Greek name of the Black Sea: Πόντος...

 and was one of the daughters of Mithridates II of Pontus

Mithridates II of Pontus

Mithridates II , third king of Pontus and son of Ariobarzanes, whom he succeeded on the throne. He was a minor when his father died, but the period of his accession cannot be determined...

 and Laodice

Laodice (wife of Mithridates II of Pontus)

Laodice was a Greek Princess of the Seleucid Empire. Laodice was of Greek Macedonian and Persian descent. She was one of the daughters and youngest child born to the Seleucid Monarchs Antiochus II Theos and Laodice I. Among her siblings were her brothers Seleucus II Callinicus and Antiochus Hierax...

. She sister was Laodice III

Laodice III

Laodice III , was a Princess of Pontus and a daughter born to King Mithridates II of Pontus and his wife Laodice. Her sister was Laodice of Pontus and her brother was Mithridates III of Pontus....

 the first wife of Antiochus III the Great

Antiochus III the Great

Antiochus III the Great Seleucid Greek king who became the 6th ruler of the Seleucid Empire as a youth of about eighteen in 223 BC. Antiochus was an ambitious ruler who ruled over Greater Syria and western Asia towards the end of the 3rd century BC...

  and her brother was Mithridates III of Pontus

Mithridates III of Pontus

Mithridates III was the fourth King of Pontus, son of Mithridates II of Pontus and Laodice. Mithridates had two sisters who were Laodice III the first wife of the Seleucid King Antiochus III the Great and Laodice of Pontus. He may have ruled in an uncertain period between 220 BC and 183 BC...

. She married her distant maternal cousin 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...

. When Achaeus fell into the power of Antiochus III (213 BC

213 BC

Year 213 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Maximus and Gracchus...

), Laodice was left in possession of the citadel of Sardis

Sardis

Sardis or Sardes was an ancient city at the location of modern Sart in Turkey's Manisa Province...

, in which she held out for a time, but was quickly compelled by the dissensions among her own troops to surrender to Antiochus III. Polybius

Polybius

Polybius , Greek ) was a Greek historian of the Hellenistic Period noted for his work, The Histories, which covered the period of 220–146 BC in detail. The work describes in part the rise of the Roman Republic and its gradual domination over Greece...

 incidentally mentions that she was brought up before her marriage at Selge

Selge, Pisidia

Selge was an important city in Pisidia, on the southern slope of Mount Taurus, modern Antalya Province, Turkey, at the part where the river Eurymedon River forces its way through the mountains towards the south....

, in Pisidia

Pisidia

Pisidia was a region of ancient Asia Minor located north of Lycia, and bordering Caria, Lydia, Phrygia and Pamphylia. It corresponds roughly to the modern-day province of Antalya in Turkey...

 (modern Turkey

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

), under the care of Logbasis

Logbasis

Logbasis , a citizen of Selge in Pisidia . When Selge was attacked by Garsyeris, the general of Achaeus, in 218 BC, Logbasis, as having been guardian to Achaeus' wife Laodice, was deputed by his countrymen to treat with the enemy, and used the opportunity to make a treacherous agreement for the...

, a citizen of that place.