When is the Thracian Kingdom shown on the map?

The border data draws the Thracian Kingdom AD 1–50. The source samples borders at fixed dates, so a span can begin late or run on past the end.

How large was the Thracian Kingdom?

At its greatest extent drawn on this map, the Thracian Kingdom covered about 89,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.

Europe · Antiquity and the Roman world

Thracian Kingdom

drawn on the map AD 1–50

See it on the map → Wikipedia ↗

Shown on the map: AD 1–50
Peak area: 89k km²
Region: Europe

Overview

The Odrysian Kingdom (Greek Basileion Odrysōn) was a union of over forty Thracian tribes, founded c. 480 BC by Teres I, who exploited the Persian retreat from Europe after the Greco-Persian Wars to unite the tribes. Its later capital was Seuthopolis. The Thracians blended their own tribal monarchy with Greek influences, using Greek in administration and trade; religion was Thracian polytheism, famous for treasures of worked gold and silver (e.g. the Panagyurishte and Letnitsa treasures).

History

Under Sitalces (r. c. 431–424 BC) the kingdom reached great extent — roughly modern Bulgaria plus parts of northern Greece, European Turkey, and southeastern Romania — and intervened in the Peloponnesian War. His successor Seuthes organised state revenues. The kingdom fragmented and was conquered by Philip II of Macedon in 341/340 BC; a smaller Odrysian state was revived c. 330 BC by Seuthes III from Seuthopolis, which functioned until the mid-3rd century BC. Thereafter Thrace fractured, suffered Celtic incursions (the kingdom of Tylis, destroyed c. 212 BC by an Odrysian king), and came under Macedonian and then Roman influence.

Decline and legacy

Rome ruled Thrace through client kings, first from the Astae and then the Sapaean tribe — the so-called Sapaean kingdom (mid-1st century BC – AD 46) with its capital at Bizye. Repeated revolts punctuated this period (21 AD, 26 AD). After King Rhoemetalces III was killed c. 44/45 AD (murdered, tradition says, by his wife) and an anti-Roman revolt failed, Emperor Claudius annexed the kingdom in AD 46 as the province of Thracia, with its capital at Perinthus (Heraclea). The Odrysian era decisively shaped the character of the southeastern Balkans.

Common questions

What was the Thracian Kingdom?: The Odrysian Kingdom (Greek Basileion Odrysōn) was a union of over forty Thracian tribes, founded c. 480 BC by Teres I, who exploited the Persian retreat from Europe after the Greco-Persian Wars to unite the tribes. Its later capital was Seuthopolis.
When is the Thracian Kingdom shown on the map?: The border data draws the Thracian Kingdom AD 1–50. The source samples borders at fixed dates, so a span can begin late or run on past the end.
How large was the Thracian Kingdom?: At its greatest extent drawn on this map, the Thracian Kingdom covered about 89,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.
Who ruled the Thracian Kingdom?: Under Sitalces (r. c. 431–424 BC) the kingdom reached great extent — roughly modern Bulgaria plus parts of northern Greece, European Turkey, and southeastern Romania — and intervened in the Peloponnesian War. His successor Seuthes organised state revenues.
How did the Thracian Kingdom end?: Rome ruled Thrace through client kings, first from the Astae and then the Sapaean tribe — the so-called Sapaean kingdom (mid-1st century BC – AD 46) with its capital at Bizye. Repeated revolts punctuated this period (21 AD, 26 AD).

Sources

This compendium cites its sources once for the whole document rather than per territory. Its bibliography names the English Wikipedia articles for each territory and its key figures as the primary basis, with Encyclopædia Britannica, the World History Encyclopedia, and academic and primary sources — Jordanes, Procopius, Gregory of Tours, Bede, Ammianus and the Anglo-Saxon Chronicle, read through the secondary literature. The article this entry is anchored on:

Wikipedia — Thracian kingdom en.wikipedia.org/wiki/Thracian_kingdom

This entry was last updated 27 September 2026.

This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made

Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.

Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).

See the Thracian Kingdom in its world

Open the atlas at AD 26 and every neighbour, rival and successor is on screen with it — then drag the slider and watch what happens next.

Open the map at AD 26 →