Individual #Sixth_Crusade  a Crusade from 1228 to 1229 led by the Holy Roman Emperor Frederick II who was therefore excommunicated by the Pope; by negotiation Frederick was able to crown himself king of Jerusalem
  type:  #Crusade  any of the more or less continuous military expeditions in the 11-13th centuries when Christian powers of Europe tried to recapture the Holy Land from the Muslims

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