1527 AD
In May 1527, the armies of Holy Roman Emperor Charles Vβcomprising mutinous German Landsknechts and Spanish soldiersβstormed Rome and sacked the city for months. Pope Clement VII was forced to take refuge in Castel Sant'Angelo while the city was looted, churches were desecrated, and thousands of Romans were killed or enslaved. The Sack of Rome marked the effective end of the Italian Renaissance and the beginning of Spanish dominance over Italy.
The irony was bitter: Charles V was the most powerful Catholic monarch in Europe, yet his troops had committed atrocities in the heart of Christendom. The mutiny was caused by unpaid wages, but the result was catastrophic for the papacy's prestige and for Rome itself.
The Sack of Rome demonstrated the vulnerability of the papal states and the growing power of secular rulers over the Church. It also accelerated the Reformation, as Protestants pointed to the moral decay of Rome as evidence of the Church's corruption. Key Sources: Pietro Aretino's letters; Jacopo Sadoleto's account; Wolfgang Reinhard, The Italian Sack of 1527