The article establishes a set of comparisons between narrative and thematic aspects of the Cantar de Mio Cid, and literary compositions of the European cultural context, from Byzantine and Turkish epics, or Icelandic Sagas, to Beowulf and Irish epics. Neighbouring conceptions of the medieval epic heroism are analyzed, which contribute to characterize it differently from its ancient cognates.El artículo establece un conjunto de comparaciones entre aspectos narrativos y temáticos del Cantar de Mio Cid y composiciones literarias del contexto cultural europeo, desde epopeyas bizantinas y turcas, o Sagas islandesas, hasta el Beowulf y la épica de Irlanda. Se analizan concepciones cercanas del heroísmo épico medieval que contribuyen a caracteriza...