Episode Overview

Podcast: Betwixt The Sheets: The History of Sex, Scandal & Society
Episode: A Very Borgia Break Up | History's Worst Breakups
Host: Dr Kate Lister
Guest: Professor Catherine Fletcher
Date: February 24, 2026

In this episode, Dr Kate Lister and Renaissance historian Professor Catherine Fletcher delve into one of history’s messiest and most scandalous marital dissolutions: the annulment of Lucrezia Borgia and Giovanni Sforza. Weaving in court gossip, political intrigue, rumors of impotence, incest, and a possible secret baby, they break down why this 15th-century breakup has remained infamous for over 500 years.

Key Discussion Points & Insights

Setting the Scene: Who Were the Main Players?

• Lucrezia Borgia (b. 1480): Illegitimate daughter of Pope Alexander VI (Rodrigo Borgia). Married at 13 for dynastic reasons.

• Giovanni Sforza: Lord of Pesaro, member of the Milanese Sforza family, 26 years old at marriage, widower (his first wife died in childbirth).

• Context: Marriage occurred in 1493 as a political alliance—the Sforzas had helped Rodrigo become pope. The union was sealed in the Vatican with a notorious, lavish, and scandal-filled ceremony.

  “Lucrezia in 1493 is the illegitimate daughter of Pope Alexander VI... and she, at the point of this marriage, is 13 years old.”
  (Catherine Fletcher, 04:27)

The Wedding: Scandal and Spectacle in the Vatican

• Pope Alexander VI was exceptionally public with his illegitimate children, inviting further gossip.

• The wedding extravaganza featured gold, velvet, Roman noble guests, and even the pope’s mistress, creating spectacle (and food fights), as chronicled by observers both scandalized and discreet.

  “There’s a bridesmaid... all the Roman nobility in attendance. Rodrigo the Pope, Pope Alexander, has also brought his mistress and she’s brought all her friends. So it’s this good family wedding... in the Vatican.”
  (Catherine Fletcher, 07:45)

The Early Marriage: “Reasonably Well” to Rupture

• Lucrezia moves to Giovanni's domain (Pesaro); initially, their marriage appears unremarkable.

• War forces Giovanni to be away; Lucrezia returns to Rome, her preferred social scene.

• The pope begins seeking a stronger alliance, preferring Naples over Milan, and thus contemplates annulling Lucrezia’s marriage to facilitate another political match.

  “Y’know, you’re 13, 14, 15, you want to be back with your friends. She was really pretty good friends with her sister-in-law… They had a circle there.”
  (Catherine Fletcher, 11:18)

The Annulment: An “Impotent” Excuse

• Divorce was nearly impossible in this era. The first strategy: find a paperwork technicality. When cardinals refuse, Plan B emerges—claim non-consummation due to “impotence.”

• Giovanni, insulted and humiliated, lashes out by spreading rumors the pope only wants his daughter for himself, fueling allegations of incest.

  “‘Plan B, we’re gonna say that the marriage was never consummated because Giovanni was not capable...’ You can imagine this does not play particularly well with Giovanni.”
  (Catherine Fletcher, 19:10)

  “In this same letter... Giovanni hits back and he says that the reason the Pope is trying to take Lucrezia away from him is to sleep with her himself.”
  (Catherine Fletcher, 21:50)

Scandal Multiplies: Incest, Impotence, and Secret Baby

• The incest rumors have long afterlives; historians have debated them for centuries.

• Lucrezia withdraws to a convent during this crisis. Rumors arise she’s pregnant by another man (possibly her father’s staff member, Pedro Calderon, who is later found dead under suspicious circumstances).

• A child, referenced in papal documents as the “Roman infant,” mysteriously appears—his parentage an enduring source of speculation.

  “So as all is... on the one hand, she’s getting divorced for non-consummation, and on the other hand, she’s taken herself off to seclusion in a nunnery. And then there’s a child.”
  (Catherine Fletcher, 32:07)

Pressures and Outcomes: Annulment and Aftermath

• Giovanni’s family bows to papal pressure, urging him to accept humiliation to preserve ties with the Vatican.

• Giovanni finally agrees to the annulment, insisting the marriage was consummated and bitterly insulted by the slander.

• Lucrezia remarries happily (for a time), Giovanni remarries and fathers more children (proving his virility to all).

  “Yes, he does. He gets married again... So clearly he was on the case to demonstrate that he was not very impotent.”
  (Catherine Fletcher, 37:53)

• Giovanni’s reputation remains forever tainted—he is remembered primarily as the husband once accused of impotence in a papal divorce.

  “If you go to his Wikip entry, it says something like, Giovanni is mainly known for being accused of impotence in the divorce...”
  (Catherine Fletcher, 42:02)

Legacies and Historical Debate

• Lucrezia: Gains a temporary respite in her second marriage, although her life remains tumultuous.
• Giovanni: Never reconciles with the Borgias, later restored to his properties after the Borgias’ fall from power.
• The Borgia Name: Continues to invoke scandal, Spanish outsider status, and moral ambiguity in Italian and broader European discourse.

Memorable Quotes & Notable Moments

On the Borgias’ Reputation

“If historians for centuries later are picking through the wreckage going, what really happened here? That’s a bad, bad break up.”
(Kate Lister, 03:28)

On Public Humiliation

“People like us are still making podcasts about your bad divorce and your penis problems. What can I say, Giovanni? It’s not the legacy you really want to leave, is it?”
(Kate Lister, 42:35)

On the Papal Wedding

“You can imagine if the Pope today started holding a wedding ceremony for his illegitimate daughter in the Vatican, it would be absolutely outrageous. Scandal with his mistress... Quite publicly.”
(Catherine Fletcher, 08:16)

Incest, Politics, and Rumor

“It starts to raise questions about his first marriage, because remember I said his first wife died in childbirth. So if Giovanni is impotent or has become impotent, what’s going on with the first wife?”
(Catherine Fletcher, 20:34)

“When you make this accusation, even if you’re making it sort of somewhat metaphorically... it associates Rodrigo with the ultimate bad guys of Roman history.”
(Catherine Fletcher, 28:06)

Timeline & Timestamps for Major Segments

• 00:14–02:54 – Introduction, setting the stage, and main players
• 03:01–10:14 – The Borgia family, the unusual Vatican wedding, early marriage dynamics
• 10:29–12:58 – War, marital estrangement, and the pope’s changing alliances
• 16:00–17:22 – The end of marital harmony, family deaths, and start of annulment process
• 17:22–19:10 – Papal efforts to find a loophole, commission of cardinals
• 19:10–22:13 – The “impotence” strategy and Giovanni’s furious counter-allegation
• 27:23–34:43 – Amplifying rumors, Lucrezia’s seclusion, the secret child, murders in the Tiber
• 35:36–39:57 – Pressure on Giovanni, the outcome for all parties, dowry details
• 39:57–42:41 – Giovanni’s restored fortunes post-Borgia, the enduring stain of scandal

The Episode’s Tone and Approach

The conversation is energetic, witty, and irreverent—balancing sharp historical insight with a frankness about sex, power, and reputation that befits Betwixt the Sheets’ signature style.

Summary: Why This Breakup Still Matters

Lucrezia Borgia and Giovanni Sforza’s marriage and messy dissolution exemplify how sex, power, and scandal are deeply intertwined in history. The mix of realpolitik, personal humiliation, and the afterlife of rumor (enabled by a press- and gossip-rich Rome) left scars still visible in historical records—and in cultural memory five centuries later. As Kate remarks, to be remembered only for your “bad divorce and your penis problems” is perhaps the worst legacy of all.

For further reading, Catherine Fletcher recommends her book "The Beauty and the Terror: An Alternative History of the Italian Renaissance."

[End of Summary]