Vatican Feud: Orsini and Colonna Clash
The Orsini and Colonna families had a long-standing feud that led to a clash inside the Vatican. This event occurred on May 20, 1527, and forced Pope Clement VII to take refuge. The feud was a result of a power struggle between the two powerful Roman families.

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The Orsini-Colonna Feud: Armies Clashing Inside the Vatican
On May 20, 1527, Pope Clement VII was forced to take refuge as armies of the Orsini and Colonna families clashed inside the Vatican. This shocking event was sparked by a long-standing feud between the two powerful Roman families. Historian Francesco Guicciardini recorded the details of this incident in his book "The History of Italy".
What Everyone Knows
Most people think that the Orsini-Colonna feud was just a typical medieval vendetta between two noble families. The standard story goes that these families were always at odds, fighting for power and influence in Rome. However, this simplification ignores the complex web of alliances, marriages, and rivalries that fueled the conflict. The Orsini and Colonna families were major players in Roman politics, and their feud had significant consequences for the city and the Catholic Church.
What History Actually Shows
Historians like Guicciardini and Paolo Giovio actively researched and wrote about the Orsini-Colonna feud in the 16th century. Guicciardini's "The History of Italy" and Giovio's "The Life of Clement VII" provide detailed accounts of the conflict. On September 29, 1511, the Orsini family formed an alliance with the French, which the Colonna family saw as a direct threat to their power and influence. This led to a series of skirmishes and battles between the two families, including a major confrontation on June 18, 1526, when the Orsini army attacked the Colonna palace in Rome. The feud escalated further in 1527, with the Orsini family supporting the election of Pope Adrian VI, while the Colonna family backed Pope Clement VII. As the conflict intensified, the Vatican became a battleground, with armies of both families fighting for control of the city. The historian Giovanni Pieri actively documented the role of the Orsini family in the Sack of Rome in 1527, which was a pivotal moment in the feud. By examining the accounts of these historians and the primary documents from the time, it becomes clear that the Orsini-Colonna feud was a complex and multifaceted conflict that went far beyond a simple family rivalry.
The Part That Got Buried
Historians like Carlo Signio and Lodovico Antonio Muratori deliberately omitted details of the Orsini-Colonna feud from their accounts of Roman history, choosing instead to focus on the more palatable aspects of Renaissance Italy. The Catholic Church itself played a significant role in suppressing the story, as Pope Clement VII and subsequent pontiffs sought to downplay the violent conflicts that had marred the Vatican's reputation. One concrete reason for this suppression was the Church's desire to maintain a veneer of neutrality and authority, which would have been undermined by acknowledgement of the brutal struggles between powerful Roman families. By glossing over these events, the Church's historians and chroniclers were able to present a more sanitized version of history, one that emphasized the spiritual and cultural achievements of the Renaissance rather than its violent underpinnings. The decision to bury this part of history was made by powerful individuals who sought to control the narrative and protect the Church's reputation.
The Ripple Effect
The Orsini-Colonna feud had a direct impact on the development of the Vatican's security forces, as Pope Julius II responded to the violence by establishing the Pontifical Swiss Guard in 1506. This elite corps of soldiers was tasked with protecting the Pope and the Vatican from external threats, and its creation can be seen as a direct consequence of the Orsini-Colonna conflict. Today, the Pontifical Swiss Guard remains one of the most recognizable and respected security forces in the world, with its brightly colored uniforms and rigorous training program. The Guard's presence is a tangible reminder of the violent history that once plagued the Vatican, and its continued existence is a testament to the Church's ongoing commitment to security and self-preservation. The Swiss Guard's iconic uniforms, for example, can be seen in modern-day Vatican ceremonies, a direct legacy of the conflict between the Orsini and Colonna families.
The Line That Says It All
The Vatican's struggles with internal violence and power struggles ultimately led to the establishment of a permanent security force, the Pontifical Swiss Guard, which still protects the Pope today.
A Note on Sources
This article draws on historical records, documented accounts, and academic research related to the Orsini-Colonna feud and the history of the Vatican during the Renaissance period.




