Religion and Communities in the Parthian Empire

From about 247 BCE to 224 CE, Parthian, or Arsacid, rulers supported sacred fires while city patrons maintained sanctuaries shaped by local traditions. At Old Nisa, court records show deliveries from royal estates that scholars have linked to sacred-fire foundations. In Adiabene, Jewish teachers reached the royal family through the palace household.

Royal fires and traditions at Nisa

Old Nisa, near Ashgabat in present-day Turkmenistan, served as a ceremonial center for the Arsacid rulers. Zoroastrianism, an Iranian religious tradition shaped by the teachings of Zoroaster, gave fire a sacred role. Worshippers prayed in its presence and treated the flame as a focus for thoughts of God and truth, rather than as a god in itself. Mary Boyce traces this reverence to older Iranian hearth traditions.

Short inscriptions on pottery, called ostraca, record deliveries from royal estates and include the title “master of a fire” for a priest who tended sacred flame. Boyce interprets the estate records as possible endowments for sacred fires. The inscriptions directly attest royal deliveries and a fire priest; their connection to particular foundations is her interpretation. Other ostraca show the Arsacids using the Zoroastrian calendar alongside their own era in daily records.

A separate account by Isidore of Charax, a writer who described routes through the Parthian realm, reports an everlasting fire guarded at Asaak, where Arsaces was first proclaimed king. Boyce interprets it as a royal fire associated with a coronation. Isidore’s description of the fire as everlasting and guarded conveys the continuing care such a foundation required. The broader discussion of the Arsacid empire connects royal religious patronage with the political roles of advisers or groups close to the monarchy.

Local sanctuaries at Hatra and Dura-Europos

At Hatra in northern Iraq, a local dynasty ruled a small kingdom under Parthian authority. The Great Temple and adjoining temple of Shamash were built at the beginning of the second century CE, during Hatra’s flourishing as a regional power; shortly after 150, its ruler used the title “king of Arabs.” Shamash was the Mesopotamian sun god and Hatra’s tutelary, or guardian, deity. Inscriptions call him “the great god,” and coin legends name the city “Hatra of Shamash,” showing his central place in local civic religion.

A walled sacred precinct organized Hatra’s temples around a large courtyard and a smaller area containing the principal sanctuary. Seven temples and shrines stood within it, with fourteen smaller temples beyond its walls. Read more about Hatra and its temples.

Dura-Europos, on the Euphrates in present-day Syria, came under Parthian rule around 113 BCE and was captured by Rome in 165 CE. Its Parthian temples shared a practical layout: a blank wall enclosed a roughly square sacred court, with the main shrine at the far end facing the entrance. Small rooms along the enclosure wall provided service space or housed secondary cults; donors usually built them. The shrine itself stood on a platform two or three steps high, with one or more altars in front. Temples serving Greek and Semitic cults used the same basic arrangement, so a shared architectural form accommodated different communities.

Dura’s synagogue paintings date to 245 CE, eight decades after the Roman conquest. They belong to the city’s later Roman phase, and the existing page on synagogue paintings explores this imagery.

Jewish teachers and the royal court of Adiabene

Jewish communities were established in Babylonia before Arsacid rule, having lived there under Babylonian, Achaemenid and Seleucid kings. Farther north, Adiabene occupied territory near the modern borders of Iraq, Iran and Turkey. Its likely capital was Arbela, now Erbil in northern Iraq. The Arsacid rulers recognized Adiabene’s local satrap as a king; Josephus’s conversion account centers on this regional royal household.

Josephus’s first-century account traces the conversion of Izates and his mother, Queen Helena, through personal contacts. While Izates lived at Charax-Spasinu, near the head of the Persian Gulf, a Jewish merchant named Ananias taught members of the royal household to worship according to Jewish practice. They introduced him to Izates, and another Jewish teacher instructed Helena. When Izates later read the law of Moses, Eleazar, a teacher from Galilee, urged him to act on what he was studying. Josephus says Izates believed circumcision, the covenant rite practiced by Jewish men, was necessary to become fully Jewish. Helena warned that his subjects might resent a king adopting unfamiliar rites. Ananias argued that Izates could follow Jewish law without the operation, but Eleazar later persuaded him to undergo it.

Josephus also describes Helena’s journey to Jerusalem during a famine. She sent servants to Alexandria to buy grain and to Cyprus for dried figs, then distributed the provisions to people in need; Izates sent money to Jerusalem’s leaders as well. This account connects a regional court to a Jewish community facing hardship through travel, food and royal resources. For local practices of worship and funerary custom, see Daily worship and burial. His account of armed conflict and displacement among Babylonian Jews is examined in local violence and displacement in Babylonia.