Medici Intrigue: The Pazzi Conspiracy and Florence’s Darkest Hour

No family shaped Florence’s destiny — or its shadows — quite like the Medici. Behind the frescoes and the patronage of Michelangelo and Botticelli lies a darker chronicle of ambition, exile and sudden death that still colours how Florentines speak of certain palazzi after dusk.

The Pazzi Conspiracy: blood in the Duomo

On Easter Sunday, 1478, rival banking family the Pazzi orchestrated an attack on Lorenzo and Giuliano de’ Medici during Mass inside the Duomo itself. Giuliano was killed; Lorenzo survived to exact a brutal reprisal. The episode, extensively documented on the Pazzi Conspiracy’s Wikipedia page, remains one of the Renaissance’s most notorious political assassinations.

Exile, poison and whispered rumour

Later generations of Medici were dogged by rumours of poisonings and political exile, tales that, true or embellished, still surface in local guided storytelling and in the corridors of the Palazzo Vecchio.

This story is part of a wider thread of Florentine folklore — continue with the ghost lore of Palazzo Vecchio and the Bargello or the Arno’s 1966 flood and Florence’s lost treasures.

Frequently asked questions

What was the Pazzi Conspiracy?

A 1478 assassination plot against Lorenzo and Giuliano de’ Medici, carried out during Mass in the Duomo, which killed Giuliano and triggered swift, violent retaliation by Lorenzo’s supporters.

Are Medici ghost stories taken seriously in Florence today?

They persist mainly as folklore and storytelling tradition rather than belief, often woven into evening walking tours through the historic centre.

Our concierge can arrange a private evening walk through the sites of the Pazzi Conspiracy, narrated with the historical nuance the story deserves.

Prefer a private route through this story instead? Our tailored private tours can be shaped around Florence’s hidden history, paced and narrated for you specifically — or, if a bespoke itinerary isn’t what you need right now, the ready-made option below is a dependable alternative.

Continue the story in person: this highly-rated small-group Uffizi Gallery tour with Vasari Corridor access is one of the best ways to see the art and history of Florence up close — and a practical choice if a fully custom itinerary isn’t in your budget this time.

Want a guidebook to take with you? This Florence & Tuscany travel guide on Amazon is a handy companion for planning your own route through the city.