On this date in 1355, the 29-year-old lover of the Portuguese crown prince was put to summary death by the reigning king’s minions.

Ines de Castro (English Wikipedia entry | Portuguese) would be posthumously acknowledged as queen on the say-so of her ex, whom everyone obeyed because he was called Peter (Pedro) the Cruel.

But in the years before Ines’s death you could just call him loverboy.

As a young man, Peter got plugged into a typical dynastic marriage with Constance of Panafiel, a descendant of kings of Castille and Aragon.*

In Constance’s entourage came the enchanting Ines, the daughter, albeit illegitimate, of a Galician nobleman.

Peter was entirely smitten by entirely the wrong woman. Vainly did the Portuguese sovereign Afonso IV strive to conform his indiscreet son to the demands of conjugal propriety. At last, the put-upon Constance died after bearing Peter his heir in 1345 and left the field to her rival.

Afonso steadfastly refused to let his lovestruck son marry Ines, and even tried banishing her to Castile, but the two carried on their forbidden passion secretly like they were in poetry, which would soon be the case.

One of 20-plus operas and ballets about Ines de Castro. She also turns up in the Portuguese national epic The Lusíadas, the French play La Reine Morte, and Ezra Pound’s Cantos (“Ignez da Castro murdered, and a wall / Here stripped, here made to stand”) … among many other literary appearances.

But beyond any qualms of prudery, Peter’s obsession made dad sweat the politics.

Peter refused to marry anyone else, and got tight with Ines’s brothers. These guys were Castilian exiles with their own axes to grind. Was the whole fortune of his house and his realm to fall under the sway of this unpredictable faction just because Peter couldn’t keep it in his codpiece? The affair had already made a dog’s breakfast of the alliance Peter was supposed to contract with his scorned wife’s family; now that Peter was having kids** with his mistress, there was the potential for a contested succession, and the brothers were goading Peter to pretend to the throne of their native Castile.

Afonso figured that this was about where his son’s right to romantic love ended. Peter had proven many times that only the most drastic of steps could separate him from Ines.

On the 7th of January 1355, Afonso and his own advisors met in secret and declared Ines’s death. Then three of the king’s emissaries, Pêro Coelho, Álvaro Gonçalves and Diogo Lopes Pacheco, rode out to find the irksome mistress at Coimbra, and chopped off her head right in front of her children.†

Assassínio de Dona Inês de Castro (date unknown), by Columbano Bordalo Pinheiro.

It was only with difficulty that a sufficient reconciliation between father and son was effected to manage a stable transition once Afonso kicked off in 1357. Finally in charge, Peter set about earning that “the Cruel” sobriquet by hunting down the retainers who had slain his wife and having them all put to terrible deaths in their turn, like their hearts ripped out of their chests. Just like had happened to Peter, see.

Peter also announced that he had been secretly married to Ines, posthumously legitimizing her. Legend, probably apocryphal, has it that he even exhumed her body and set her up on the throne in regal finery like the cadaver synod, so that his courtiers could pay their respects to the putrefying flesh of “the queen who was crowned after death”. But she wasn’t coming back for real: in the still-extant Portuguese idiom, “Agora é tarde; Inês é morta” — “It’s too late, Ines is dead.”

Couronnement d’Inés de Castro en 1361 (c. 1849), by Pierre-Charles Comte.

In death at this hour, Ines de Castro reigns in a gorgeous carved tomb in the Alcobaca Monastery … right next to her lover, King Peter I.

* The Peter-Constance marriage was itself an alliance of marital castaways. Constance had been the child bride of Castilian King Alfonso XI, but was put aside by Alfonso so that he could realign his bedroom politics by instead marrying Peter’s own elder sister. But Alfonso neglected her, too — causing a love triangle that would in time end with an execution.

When Peter’s humiliated sister fled the Castilian court, the Portuguese royal family allied with Constance’s family against Alfonso, by marrying the spurned Constance to the spurned-in-law Peter.

** High noble titles were bestowed on the three children of Peter and Ines who survived into adulthood. Two of them, John and Denis, unsuccessfully attempted to claim the throne during the chaotic interregnum of Portugal’s 1383-1385 Crisis.

† Ines’s execution/murder is associated with Quinta das Lagrimas, the Estate of Tears, even though that’s not where it actually occurred. A fountain there is said to have sprung from the tears she said as she was slain, and its red stones stained by her blood.

On this day..

• 1959: Col. Cornelio Rojas
• 1829: William Maxwell, the last hanged for sodomy by the Royal Navy
• 1528: Augustin and Christoph Perwanger
• 1755: Henri Mongeot, Lescombat assassin
• 1859: William Burgess
• 2015: Ahmed Ali and Ghulam Shabbir, Pakistan terrorists
• 1889: Alfred Schaeffer, diabolical dynamiter, lynched near Seattle
• 1612: John Selman, Christmas cutpurse
• 1611: Three accomplices of Elizabeth Báthory, the Countess of Blood
• 2009: Haidar Ghanem, human rights activist
• 1898: Theodore Durrant, the Demon of the Belfry
• 2007: 23 Shia hostages