Person

Euthydemus I

r. c. 225–200 BCE · 3rd century BCE

Euthydemus I was a Greco-Bactrian king from Magnesia who overthrew Diodotus II around 225 BCE and founded the Euthydemid dynasty. He withstood a two-year siege of Bactra by the Seleucid king Antiochus III, who in about 206 BCE recognised him as king and offered a daughter in marriage to his son Demetrius I. Under his successors the Greco-Bactrians expanded into India.

Euthydemus I
Image: Classical Numismatic Group;[1] · CC BY-SA 3.0 · Wikimedia Commons

Mentioned in 1 state history

Greco-Bactrian Kingdom

See also

Cite this entry
APA
The Epoch Institute. (2026). Euthydemus I. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/euthydemus-i
MLA
“Euthydemus I.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/euthydemus-i. Accessed .
Chicago
The Epoch Institute. “Euthydemus I.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/euthydemus-i.
Harvard
The Epoch Institute (2026) ‘Euthydemus I’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/euthydemus-i (Accessed: ).

Last reviewed October 2026Random entry ↻