Battle of Pelagonia
{'<entity_0>': 'Principality of Achaea', '<entity_1>': 'Despotate of Epirus', '<entity_2>': 'Battle of Pelagonia', '<entity_3>': 'Empire of Nicea', '<entity_4>': 'Pelagonia', '<entity_5>': 'Kingdom of Sicily', '<entity_6>': 'Bitola', '<entity_7>': 'battle'}
[['Battle of Pelagonia', 'instance of', 'battle'], ['Battle of Pelagonia', 'location', 'Pelagonia'], ['Battle of Pelagonia', 'location', 'Kingdom of Sicily'], ['Battle of Pelagonia', 'location', 'Principality of Achaea'], ['Battle of Pelagonia', 'location', 'Empire of Nicea'], ['Battle of Pelagonia', 'location', 'Despotate of Epirus'], ['Battle of Pelagonia', 'location', 'Bitola'], ['Battle of Pelagonia', 'description', 'battle']]
The <entity_2> or Battle of Kastoria took place in early summer or autumn 1259, between the <entity_3> and an anti-Nicaean alliance comprising <entity_1>, <entity_5> and the <entity_0>. The details of the <entity_7>, including its precise date and location, are disputed as the primary sources give contradictory information; modern scholars usually place it either in July or in September, somewhere in the plain of <entity_4> or near Kastoria. Following the fall of the Byzantine Empire to the Fourth Crusade in 1204, the two main Byzantine Greek contenders for the imperial legacy of Byzantium were the <entity_3> in western Asia Minor, and the <entity_1> in western Greece. As a result of the differences in the sources, numerous details of the <entity_7> remain unclear, from the exact date (proposed dates range from June to November), the location (<entity_4> or Kastoria), or the exact roles the various leaders played in the events. The exact location of the <entity_7> has been disputed as the only clear toponym given in the sources is Boril's Wood (Βορίλλα λόγγος, Vorilla longos), which has been variously placed by modern researchers close to Prilep, Kastoria, or <entity_6> (then known as <entity_4>). The <entity_7> was a particularly heavy blow to the <entity_0>. The defeat at <entity_4> also ended the supremacy of the <entity_0> in the affairs of Frankish Greece, and the Nicaean/Byzantine offensive that followed further curtailed its political independence.
['battle']