Southern Dobruja
| Southern Dobruja | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Historical region of Southeastern Europe | |||||||||
| 1913–1940 | |||||||||
Map of Bulgaria and Romania with Southern Dobruja or Cadrilater highlighted in yellow. Northern Dobruja is highlighted in orange. | |||||||||
| Area | |||||||||
• 1913 | 7,412 km2 (2,862 sq mi) | ||||||||
• 1940 | 7,412 km2 (2,862 sq mi) | ||||||||
| Population | |||||||||
• 1913 | 286,000 | ||||||||
• 1940 | 400,000 (before population exchange) | ||||||||
| History | |||||||||
| 10 August 1913 | |||||||||
| 7 September 1940 | |||||||||
| Political subdivisions | Provinces | ||||||||
| |||||||||
| Today part of | Bulgaria | ||||||||
Southern Dobruja or South Dobruja (Bulgarian: Южна Добруджа, romanized: Yuzhna Dobrudzha or simply Добруджа, Dobrudzha; Romanian: Dobrogea de Sud or Dobrogea Nouă, lit. 'New Dobruja'), also the Quadrilateral (Romanian: Cadrilater), is an area of north-eastern Bulgaria comprising Dobrich and Silistra provinces, part of the historical region of Dobruja. It has an area of 7,412 square km and a population of 358,000.
It is historically noteworthy as a point of contention in Bulgarian-Romanian relations. Part of Bulgaria between 1878 and 1913, the region was annexed by Romania in the Treaty of Bucharest (1913), targeted by Bulgaria during World War I (1914–18), and subsequently remained Romanian until 1940, when Bulgaria regained control in the Treaty of Craiova, which went along with a compulsory population exchange. Southern Dobruja has been part of Bulgaria since 1940.