# Diodotus I

_Seleucid satrap of Bactria_

Canonical: https://diginpl.com/people/diodotus-i
Last updated: 2026-11-03

> Diodotus I Soter was the first Hellenistic king of Bactria. Diodotus was initially satrap of Bactria, but became independent of the Seleucid empire around 255 BC, establishing the Greco-Bactrian Kingdom. In about 250 BC, Diodotus repelled a Parthian invasion of Bactria by Arsaces. He minted an extensive coinage and administered a powerful and prosperous new kingdom. He died around 235 BC and was succeeded by his son Diodotus II.

## Quick facts

- **Place of death:** Bactria ([Wikidata](https://www.wikidata.org/wiki/Q335032#P20))
- **Occupation:** sovereign ([Wikidata](https://www.wikidata.org/wiki/Q335032#P106))
- **Positions held:** King of Greco-Bactrian kingdom; Seleucid Satrap ([Wikidata](https://www.wikidata.org/wiki/Q335032#P39))

## Questions

**What positions has Diodotus I held?**  
Positions held by Diodotus I include: King of Greco-Bactrian kingdom; Seleucid Satrap.

## Related

- [Heliocles I](https://diginpl.com/people/heliocles-i)
- [Agathocles of Bactria](https://diginpl.com/people/agathocles-of-bactria)
- [Euthydemus I](https://diginpl.com/people/euthydemus-i)
- [Demetrius I of Bactria](https://diginpl.com/people/demetrius-i-of-bactria)
- [Diodotus II](https://diginpl.com/people/diodotus-ii)
- [Eucratides I](https://diginpl.com/people/eucratides-i)

## Sources

- [Wikipedia (English): Diodotus I](https://en.wikipedia.org/wiki/Diodotus_I) — [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
- [Wikidata item Q335032](https://www.wikidata.org/wiki/Q335032) — [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/)
- [Image: DiodotusGoldCoin.jpg by World Imaging (CC BY-SA 3.0)](https://commons.wikimedia.org/wiki/File:DiodotusGoldCoin.jpg)

## Licence and attribution

Text from the Wikipedia article Diodotus I, licensed under CC BY-SA 4.0. This page's text is shared under the same licence. Facts from Wikidata (CC0). Image: DiodotusGoldCoin.jpg — World Imaging, CC BY-SA 3.0.

## Cite this page

"Diodotus I". DigiNepal. Last updated 3 November 2026. https://diginpl.com/people/diodotus-i. Retrieved 10 November 2026.