 The Battle of Ollantaytambo ( Spanish : <unk> de Ollantaytambo , IPA : [ <unk> ðe <unk> ] ) took place in January 1537 , between the forces of Inca emperor Manco Inca and a Spanish expedition led by Hernando Pizarro during the Spanish conquest of Peru . A former ally of the Spaniards , Manco Inca rebelled in May 1536 , and besieged a Spanish garrison in the city of Cusco . To end the stand @-@ off , the besieged mounted a raid against the emperor 's headquarters in the town of Ollantaytambo . The expedition , commanded by Hernando Pizarro , included 100 Spaniards and some 30 @,@ 000 Indian auxiliaries against an Inca army more than 30 @,@ 000 strong . 
