Thanks to Manco Cápac, the first Sapa Inca (Inca Emperor), the Inca civilization continued to grow until it became the greatest empire in the Americas.
With its advanced road system, planned cities, and highly organized government, the empire thrived for centuries. However, the death of Huayna Cápac marked a turning point.
After his passing, early in the 16th century, a chain of events unfolded that would ultimately lead to the downfall of this mighty empire.
At the heart of it all was a fierce rivalry between two brothers, Huáscar and Atahualpa, a conflict that proved decisive.
Join us as we uncover how this inca civil war set the stage for the end of the Inca Empire, and why, even after more than 500 years, its story remains deeply significant for us Peruvians.
Origins of the Conflict
When Inca Huayna Capac was the king, the empire was at its peak: 12 million people,100 ethnic groups, and over 10 languages, the greatest in South America at that time.
As he was expanding his empire, he succumbed to smallpox and eventually died. Smallpox had spread through some parts of the empire due to the arrival of Columbus and his crew.
Huayna Capac’s oldest son, Ninan Cuyuchi, had died before him, and he never wore the traditional Sapa Inca crown, the mascaipacha.
Therefore, he wasn’t officially recognized as Sapa Inca. After Huayna Cápac’s death, the panakas (royal families of Cusco) backed Huascar, Cápac’s younger son, and unanimously appointed him as the new Sapa Inca.
Meanwhile, his other son, Atahualpa, was in Quito leading a military campaign that his father had started. By his side stood the empire’s most loyal and battle-hardened army.
Among his strongest supporters were three brilliant generals: Chalcuchima, Quisquis, and Rumiñawi. Historians believe that Huayna Cápac may have hoped his sons would rule together in harmony, sharing power to preserve the empire’s strength.
Unfortunately, reality turned out to be very different. Huascar saw his younger brother as a menace, so he decided to strike at Atahualpa in Quito.
Undoubtedly, the death of their father, Huayna Capac, significantly weakened the Inca Empire to a point that nobody had seen before.
The Course of the War
Led by his most trusted general, Atoq, Huáscar’s army marched north to confront Atahualpa. At first, Huáscar claimed some victories, but his luck quickly ran out.
Atahualpa’s seasoned troops, hardened by years of campaigning, crushed Huáscar’s forces. Then, they captured, tortured, and executed Atoq.
Legends say that Atahualpa even turned Atoq’s skull into a goblet from which he drank chicha. Definitely, a chilling symbol of triumph and domination.
With Atoq gone, Atahualpa’s generals Quisquis and Chalcuchima advanced south toward Cusco, the very heart of the Inca Empire and Huáscar’s seat of power.
The decisive clash came at Huanacopampa, just south of Cusco. Early on, Huáscar’s forces achieved notable victories.
But his inexperience in warfare proved costly—he failed to pursue and cut Atahualpa’s veteran generals’ armies. This mistake would seal his fate.
Atahualpa’s generals, masters of strategy, lay hidden to prepare the perfect ambush. The day after the battle, Huáscar, believing victory was his, divided his army into three parts.
Convinced that Atahualpa’s forces were already broken, he personally led his men to deliver the final blow.
But Huáscar’s confidence would be his undoing. Chalcuchimac suddenly struck, annihilating Huáscar’s vanguard by exploiting the narrow terrain.
At the same time, Quisquis sealed off the escape routes, leaving Huáscar and his men trapped. Desperate, Huáscar attempted to flee, but Quisquis captured him.
After four years of brutal conflict, the civil war was nearing its bloody end. Chalcuchimac, in a final trick, disguised himself as Huáscar. He approached the third division of the Inca army, which stayed at Huanacopampa.
Trusting they would meet their king, the soldiers approached unarmed—only for enemies to slaughter them in a merciless massacre.
With this, Atahualpa claimed total victory, crushing Huáscar and unifying the control of the empire under his rule.
The clash’s outcome
Atahualpa took off his brother the mascaipacha and his royal clothes and ornaments, and Atahualpa’s men sent these items to him as a sign of victory.
Atahualpa ordered the execution of Huáscar’s wives and children. His men gathered them on the outskirts of Cusco, where they were brutally killed—an act that revealed the Emperor’s ruthless and cold-blooded nature.
This erased Huáscar’s royal lineage and secured Atahualpa’s power. The Civil War, however, came at an enormous cost. According to estimates, casualties on both sides exceeded one million.
The Cusco-born chronicler Inca Garcilaso de la Vega recorded that some 150,000 people died in the Battle of Hatun Xauxa alone.
The war abandoned many small towns and ethnic groups. This was especially true in areas with the fiercest fighting. Some scholars even suggest that the conflict contributed to the abandonment of Machu Picchu.
This devastating civil war deeply weakened the empire, paving the way for the Spanish conquest. When they reached Cusco, the strong Inca government was broken.
This made it easier to set up the new colonial rule that became the Viceroyalty of Peru. Atahualpa, meanwhile, was celebrating his victory in Cajamarca.
Atahualpa even humiliated his captured half-brother, commanding that Huáscar be brought before him half-naked and barefoot, treated as nothing more than a slave.
But while basking in triumph, Atahualpa received unsettling news from his messengers, the chaskis. Strange, white-bearded men appeared on the empire’s northern coast.
They came in “floating houses” and rode beasts unfamiliar to the Incas. These newcomers—who had landed in Tumbes—looted, tortured, and killed locals as they moved inland.
Atahualpa let them come closer. He might have been curious about the strange visitors. He may also have felt overconfident in his strong army.
The Beginning of the End
On November 15, 1532, Spaniards arrived for the first time in Peru, led by Francisco Pizarro. Later, Atahualpa informed that he would receive the Spaniards and Pizarro.
As we said before, Atahulapa felt overconfident about his over 30,000 soldiers and his triumph over his half-brother, underestimating the Spaniards’ cleverness and malice.
The next day, they were supposed to meet in Cajamarca’s main square, and the priest surprised Atahualpa because he was the only person he had met.
The priest started talking to Atahualpa about the importance of recognizing the catholic god and accepting Charles V as his king.
The priest lent Atahualpa a bible, which was the first time that the Emperor saw a book. After flipping through it, he threw it.
This action upset the priest, and that was the moment when Spanish conquistadors ambushed the inca, capturing him.
Many wouldn’t believe it at that time, but the capture of Atahualpa marked the beginning of the end of the powerful Inca Empire.
After a few months of capturing the monarch, Pizarro offered freedom in exchange for filling a room full of gold. Both agreed to the deal, and Atahualpa’s men started looking for gold and silver to pay the ransom.
During that time, Pizarro allowed Atahualpa to keep ruling his empire, although he was in prison. For instance, one of Atahualpa’s first orders was the execution of Huascar, who was still a prisoner.
He killed his half-brother as he realized that the Spaniards wanted to meet Huascar. In July 1533, Pizarro and his men started to hear talk that Rumiñahui’s strong army, still in Quito, was gearing up to free Atahualpa.
Panicked, they put Atahualpa to death on July 26, calling him a traitor. As it turned out, the rumors were wrong – Rumiñahui stayed in Quito.
The Powerful Empire that came to an end
The death of Atahualpa officially marked the end of the powerful Empire. Later, some locals started seeing Spaniards as “avengers” of Huascar, and they even marched in Cusco as “liberators.”
Little do they know that eventually, it will be totally the opposite. Spaniards took advantage of Atahualpa’s short-lived rule, his overconfidence, and the huge break that the civil war marked in the empire.
and, combined with trickery, cleverness, and even malice, they could conquer the greatest empire in the Americas.
Spaniards believed that the eldest son was the one who had the most rights possible, so they supported Huascar and tried to make Atahualpa look like the “usurper,” as he was the younger one.
This campaign against Atahualpa supported pro-conquest writers, such as Pedro Sarmiento de Gamboa. Rivalry between the two still exists, as some people support Atahualpa, while others support Huascar, in Cusco or Quito, both places where action took place.
A War that would be significant for the future
Still, some questions remain unanswered. For example, what might have happened if Huayna Capac had still been alive to rule the Empire when the Spaniards arrived?
If Atahualpa hadn’t been too naive, the Spaniards would have come back to their country, or they would have been killed.
What would have happened if there had been a civil war in the middle of the zenith of the greatest empire of the Americas?
However, these events and the ones that would come later, Peru’s viceroyalty, colonial era, and finally the fight for independence, shaped what we know as modern-day Peru.
If you want to learn more interesting details about the rich and vast Peruvian culture, stay tuned to our blog.
Likewise, trust Viagens Machu Picchu for your trip to Peru, to learn the invaluable inca legacy. Feel free to contact us. Peru is waiting for you.
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