Osijek

Sister cities

• Novi Sad
• Pécs
• Nitra
• Vicenza
• Pforzheim
• Kranj
• Maribor
• Lausanne
• Budapest District XIII
• Prizren
• Ploiești
• Tuzla

History

Human habitation in the Osijek area dates to the Neolithic period. The first known inhabitants were the Illyrian tribe of the Andizetes. During the second half of the 4th century BC, the settlement was attacked and subsequently captured by the Celtic Scordisci, who established a permanent presence there. Following the Roman conquest of Pannonia, the settlement—then known as Mursa—was garrisoned by the Roman Seventh Legion. The legion administered the area from a military castrum and built a bridge across the Drava River. Historical evidence suggests that Emperor Hadrian founded this settlement as a new foundation. He later elevated Mursa to a colony with special privileges in 133 AD. The subsequent history of Mursa was marked by turbulence, as several decisive battles were fought in its vicinity. These conflicts had profound consequences for the colony and the wider region, which was already strained due to the westward migration of various tribes—including the Alemanni, Gepids, Goths, Marcomanni, and Vandals—who were displaced by the invading Huns. After the collapse of the Western Roman Empire and the Avar Khaganate's destruction of local tribes in the 6th century, the region was repopulated by Slavic tribes during their mass migrating to Southeastern Europe in the Early Middle Ages, between the 6th and 7th centuries. The earliest recorded mention of Osijek dates to 1196. From 1353 to 1472, the town was a feudal possession of the Kórógyi family. Following the death of the last Kórógyi, King Matthias Corvinus transferred authority over Osijek to the Rozgonyi family. The city was subsequently sacked and nearly destroyed by an invading Ottoman army on 8 August 1526, just prior to the Battle of Mohács. A permanent Turkish garrison was established in 1529, after which…

Most-observed species

• Great Tit

  Parus major Linnaeus, 1758 · Aves
  2,255
• Common Buzzard

  Buteo buteo (Linnaeus, 1758) · Aves
  1,347
• Gray/Purple Heron

  Ardea cinerea Linnaeus, 1758 · Aves
  1,194
• Mute Swan

  Cygnus olor (J.F.Gmelin, 1789) · Aves
  1,183
• White-tailed Eagle

  Haliaeetus albicilla (Linnaeus, 1758) · Aves
  1,070
• Common Chaffinch

  Fringilla coelebs Linnaeus, 1758 · Aves
  917
• Carrion Crow

  Corvus corone Linnaeus, 1758 · Aves
  807
• Common Wood-Pigeon

  Columba palumbus Linnaeus, 1758 · Aves
  784

Most recent

• M 4 — 2026-05-05
  9 km WNW of Kupusina, Serbia
• M 4.5 — 2023-05-19
  5 km E of Srebrenik, Bosnia and Herzegovina
• M 4.1 — 2022-02-10
  3 km SSE of Srebrenik, Bosnia and Herzegovina
• M 3.2 — 2020-06-26
  3 km ESE of Zdenci, Croatia
• M 2.9 — 2019-09-22
  3 km ENE of Srebrenik, Bosnia and Herzegovina
• M 4.2 — 2019-07-21
  4 km SW of Srebrenik, Bosnia and Herzegovina