# Sosibius

_Late 3rd-century BC Ptolemaic chief minister_

Canonical: https://diginpl.com/people/sosibius
Last updated: 2026-11-07

> Sosibius was the chief minister of Ptolemy IV Philopator, king of Egypt. Nothing is known of his origin or parentage, though he may have been a son of Sosibius of Tarentum; nor is there any account of how he rose to power. He is first attested immediately after the accession of Ptolemy IV in 221 BC, exercising great influence over the 22-year old king alongside Agathocles, the brother of Ptolemy IV's mistress Agathoclea. He remained a major force throughout the reign and helped ensure the smooth succession of Ptolemy V Epiphanes in 204 BC. After that he disappears from the record.

## Quick facts

- **Place of birth:** Alexandria ([Wikidata](https://www.wikidata.org/wiki/Q682291#P19))
- **Occupation:** politician; minister ([Wikidata](https://www.wikidata.org/wiki/Q682291#P106))
- **Positions held:** regent ([Wikidata](https://www.wikidata.org/wiki/Q682291#P39))

## Questions

**What positions has Sosibius held?**  
Positions held by Sosibius include: regent.

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## Sources

- [Wikipedia (English): Sosibius](https://en.wikipedia.org/wiki/Sosibius) — [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
- [Wikidata item Q682291](https://www.wikidata.org/wiki/Q682291) — [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/)
- [Image: Octadrachm Ptolemy IV BM CMBMC33.jpg by Unknown artist Unknown artist (Public domain)](https://commons.wikimedia.org/wiki/File:Octadrachm_Ptolemy_IV_BM_CMBMC33.jpg)

## Licence and attribution

Text from the Wikipedia article Sosibius, licensed under CC BY-SA 4.0. This page's text is shared under the same licence. Facts from Wikidata (CC0). Image: Octadrachm Ptolemy IV BM CMBMC33.jpg — Unknown artist Unknown artist, Public domain.

## Cite this page

"Sosibius". DigiNepal. Last updated 7 November 2026. https://diginpl.com/people/sosibius. Retrieved 10 November 2026.