Medieval Italy, the Peruzzis & the world's first bank run

The world's first bank run: the Peruzzis of medieval Italy | GZERO World

Bank runs. Market volatility. Panic in the streets. When I say we’ve been here before, I don’t just mean 2008 or 1929. One of the earliest recorded bank runs dates back to the 14th century. Italian city-states like Florence and Venice sat at the crossroads of trade routes between Asia and Europe and were financial hubs. In the early 1300s, the “Peruzzi” family quickly became one of the most powerful and wealthy in Florence, through a highly profitable textile trade that focused on imported English wool.

As their wealth grew, so did their banking network, extending throughout Europe and even to England’s King Edward the Third. King Edward at the time was embroiled in a series of expensive wars with France, which the Peruzzi's increasingly bankrolled. Unfortunately, King Edward’s appetite for battle and glory was bigger than his purse, and when he failed to pay his debts in 1345, the Peruzzi bank took a massive financial hit.

Word soon got back to Florence about the deadbeat English king. Depositors panicked, rushing to withdraw their florins before the Bank of Peruzzi ran out of funds. A bank-run ensued and, soon after, the House of Peruzzi was ruined.

The reason you’ve probably never heard of the Peruzzi's until now has quite a bit to do with the Florentine family that rose to power soon after their fall. The House of Medici [meh·duh·chee] became one of the wealthiest and most powerful families in Renaissance Europe in part by learning from the Peruzzi’s mistakes. Where the Peruzzi's focused heavily on speculative investments and individual clients (ahem, Edward the Third, ahem), the Medicis diversified their portfolio across a range of industries and regions, which protected them from risk and market volatility.

Fast-forward to today and the same pitfalls that the Peruzzi’s faced exist for modern banks that rely on overextended credit and speculation. I mean, what is crypto if not today’s version of English wool? And whether you’re the House of Peruzzi or Silicon Valley Bank, one thing is clear. Stay the heck away from the King of England.

Watch the GZERO World episode: The banking crisis, AI & Ukraine: Larry Summers weighs in

More from GZERO Media

Walmart’s $350 billion commitment to American manufacturing means two-thirds of the products we buy come straight from our backyard to yours. From New Jersey hot sauce to grills made in Tennessee, Walmart is stocking the shelves with products rooted in local communities. The impact? Over 750,000 American jobs - putting more people to work and keeping communities strong. Learn more here.

People gather at a petrol station in Bamako, Mali, on November 1, 2025, amid ongoing fuel shortages caused by a blockade imposed by al Qaeda-linked insurgents.
REUTERS/Stringer

Mali is on the verge of falling to an Islamist group that has pledged to transform the country into a pre-modern caliphate. The militant group’s momentum has Mali’s neighbors worried.

Last week, Microsoft released the AI Diffusion Report 2025, offering a comprehensive look at how artificial intelligence is spreading across economies, industries, and workforces worldwide. The findings show that AI adoption has reached an inflection point: 68% of enterprises now use AI in at least one function, driving measurable productivity and economic growth. The report also highlights that diffusion is uneven, underscoring the need for greater investment in digital skills, responsible AI governance, and public-private collaboration to ensure the benefits are broadly shared. Read the full report here.

- YouTube

At the 2025 Abu Dhabi Global AI Summit, UNCTAD Secretary-General Rebeca Grynspan warns that without deliberate action, the world’s poorest countries risk exclusion from the AI revolution. “There is no way that trickle down will make the trick,” she tells GZERO Media’s Tony Maciulis. “We have to think about inclusion by design."

- YouTube

In this Global Stage panel recorded live in Abu Dhabi, Becky Anderson (CNN) leads a candid discussion on how to close that gap with Brad Smith (Vice Chair & President, Microsoft), Peng Xiao (CEO, G42), Ian Bremmer (President & Founder, Eurasia Group and GZERO Media), and Baroness Joanna Shields (Executive Chair, Responsible AI Future Foundation).