Ancient Rome

Alexander Helios: The forgotten son of Cleopatra and Antony

Alexander Helios’s life is a poignant reflection of the fragility of power and the precarious fates of those born into tumultuous times.

Alexander Helios The forgotten son of Cleopatra and Antony

The history of Alexander Helios, son of Cleopatra VII and Mark Antony, offers a glimpse into the turbulent world of the late Roman Republic. Born into royalty, Alexander Helios became a symbol of his parents’ ambitions, but his life was overshadowed by war, political intrigue, and eventual obscurity.

This silver tetradrachm portrays the Ptolemaic queen Cleopatra VII 
This silver tetradrachm portrays the Ptolemaic queen Cleopatra VII on one side, and the Roman triumvir Mark Antony on the other (1st century BCE). Cleopatra’s profile has been made to resemble the features of her husband Mark Antony in the tradition of many Hellenistic coin portraits of couples. Unlike most coins portraying royal couples, Cleopatra’s portrait is not situated behind Antony’s. Instead, Antony and Cleopatra are portrayed on opposite sides of the coin with appropriate titles for each. (Altes Museum, Berlin)

Early life in Alexandria: A royal birth under the sun

Alexander Helios was born in late 40 BCE in Alexandria, Egypt, alongside his twin sister, Cleopatra Selene II. They were the first of three children born to Cleopatra VII, the last queen of the Ptolemaic dynasty, and Mark Antony, a Roman triumvir. His name, “Helios,” Greek for “sun,” reflected his mother’s flair for symbolism and her aspirations for a grand Hellenistic future. Cleopatra Selene, his twin, bore the name “moon,” symbolizing a cosmic unity that tied their fates to the heavens and their parents’ imperial dreams.

Cleopatra broke with Ptolemaic tradition by naming her son after Alexander the Great instead of the dynasty’s usual “Ptolemy.” This choice was a bold statement, linking her child to one of history’s most legendary figures and signaling her ambitions for his destiny. Yet, Helios’s early years were shaped more by his father’s absence than by his mother’s dynastic visions. Mark Antony, preoccupied with his duties and marriage to Octavia Minor in Rome, did not meet his son until 37 BCE.

Map of Armenia and the Roman client states in eastern Asia Minor
Map of Armenia and the Roman client states in eastern Asia Minor, ca. 50 CE, before the Roman-Parthian War and the annexation of the client kingdoms into the Empire.

A pawn in the politics of empire

Alexander Helios’s life was inseparably tied to his parents’ political ambitions and Rome’s shifting power dynamics. In 37 BCE, Cleopatra and Antony reunited in Antioch, solidifying their alliance. Around this time, Helios and Selene received their celestial surnames, reflecting their parents’ view of them as symbols of a broader imperial vision.

Helios’s royal future became intertwined with Antony’s military campaigns against the Parthian Empire. After Antony’s disastrous defeat in 36 BCE, attention turned to Armenia, whose betrayal had contributed to the failure. In 34 BCE, Antony conquered Armenia and staged the Donations of Alexandria, a grand spectacle where territories were bestowed on Cleopatra and her children. During this event, Helios, then six years old, was declared “King of Kings” and ceremonially granted rule over Armenia, Media, and Parthia—lands Antony and Cleopatra had yet to secure.

Dressed as an Iranian prince, Helios’s presentation was a strategic attempt to solidify legitimacy and project dominance in the eastern Mediterranean. However, his titles were largely symbolic, and his role was that of a political pawn rather than an active ruler.

This larger than life 1st Century BCE granite head was found in the submerged sections of ancient Alexandria, Egypt
This larger than life 1st Century BCE granite head was found in the submerged sections of ancient Alexandria, Egypt. It is believed to have been a part of a statue depicting Ptolemy XV, commonly known as “Caesarion” (Greek for “Little Caesar”). Caesarion is most well known for being the illegitimate son of Ptolemaic queen Cleopatra VII and the Roman dictator Julius Caesar.
The head was on display at the Franklin Institute in Philadelphia, USA.

The fall of Antony and Cleopatra

The alliance between Antony and Cleopatra became increasingly strained by Rome’s shifting politics. Octavian, Antony’s rival and future emperor Augustus, declared war on Cleopatra in 32 BCE. The conflict culminated in the Battle of Actium in 31 BCE, where Octavian’s forces decisively defeated Antony and Cleopatra. By 30 BCE, with Octavian’s invasion of Egypt, their reign collapsed.

Antony and Cleopatra’s suicides left their children vulnerable to the victors. Caesarion, Cleopatra’s son with Julius Caesar, was executed by Octavian as a potential rival. However, Helios, Selene, and their younger brother Ptolemy Philadelphus were spared, possibly due to their youth.

Captivity in Rome: A diminished legacy

Following Octavian’s victory, Helios and his siblings were taken to Rome. During Octavian’s triumphal procession, the three children were paraded through the streets in golden chains behind a wax effigy of their mother. This display, meant to humiliate their lineage, evoked sympathy from onlookers. The sight of the children struggling under the weight of their chains drew cries for mercy.

Octavian entrusted the children to his sister, Octavia Minor, who raised them alongside her own children. Under her care, Cleopatra Selene II later married King Juba II of Mauretania, carving out a new legacy for herself. However, Helios and Ptolemy Philadelphus disappeared from historical records. It is widely speculated that they did not survive to adulthood, likely succumbing to illness or assassination.

Conclusion

Alexander Helios’s life is a poignant reflection of the fragility of power and the precarious fates of those born into tumultuous times. Though his parents envisioned him as a linchpin of their imperial aspirations, his life was cut short, and his name faded from history. Today, Helios stands as a reminder of a bygone world where ambition, symbolism, and the march of empire shaped destinies—and sometimes extinguished them.

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