page_title: History of Hungary
section_title: Medieval Hungary
hierarchical_section_title: History of Hungary / Medieval Hungary
caption_attribution_description: English: Kalandozó magyar hadjáratok Hungarian campaigns
context_page_description: Hungary in its modern borders roughly corresponds to the Great Hungarian Plain.
  During the Iron Age, it was at the boundary of Celtic, Illyrian and Iranian cultural spheres.
  The name "Pannonian" comes from Pannonia, a province of the Roman Empire. Only the western part of the territory of modern Hungary formed part of the ancient Roman Province of Pannonia. The
  Roman control collapsed with the Hunnic invasions of 370–410 and Pannonia was part of the Ostrogothic Kingdom during the late 5th to mid 6th century, succeeded by the Avar Khaganate.civil
  The Magyar invasion takes place during the 9th century.
  The Magyars were Christianized at the end of the 10th century, and the Christian Kingdom of Hungary was established in AD 1000,
  ruled by the Árpád dynasty for the following three centuries.
  In the high medieval period, the kingdom expanded beyond Pannonia, to the Adriatic coast. In 1241 during the reign of Béla IV, Hungary was invaded by the Mongols under Batu Khan. The outnumbered Hungarians were decisively defeated at the Battle of Mohi by the Mongol army. King Béla fled to the Holy Roman Empire and left the Hungarian population under the mercy of the Mongols.
caption: Hungarian raids across Europe in the 10th century.
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