Calvinist nobleman Michal Piekarski was spectacularly executed in Warsaw on this date in 1620 for attempting the life of the Polish-Lithuanian king.

The lengthy reign of Sigismund III Vasa marks Poland’s downward slide out of her golden age, although how much of this trendline is personally attributable to Sigismund embarks scholarly debates well beyond this writer’s ken.

Sigismund III Vasa held both the Polish-Lithuanian and the Swedish thrones in a personal union but he lost the latter realm to rebellion; he meddled unsuccessfully in Russia’s Time of Troubles interregnum; and he faced a rebellion of nobility in 1606-1608 that, although it failed to overthrow him, permanently curtailed the power Polish monarchy.

That conflict with the aristocracy overlapped with a sectarian schism common throughout Europe in the train of the Protestant Reformation — for Sigismund was very Catholic and his nobility divided.

It’s the latter fissure that’s thought to have supplied the proximate motivation for our date’s principal. Piekarski (English Wikipedia entry | Polish), a petty noble, had long been noted as a moody, melancholic man too unstable even to be entrusted with the management of his own estates — the consequence of a childhood head injury.

He was also a staunch Calvinist, but broad-minded enough to find virtue in his opponents’ tactics. In 1610, Catholic ultra Francois Ravaillac had assassinated France’s Henri IV, and it’s thought that Ravaillac’s boldness put the bee into Piekarski’s bonnet.

A decade later, the Pole stung with cinematic flair: he jumped Sigismund in a narrow corridor while the latter was en route to Mass and dealt 1d8 bludgeoning damage by thumping the king in the back with a warhammer; after a second attempted blow only grazed the sovereign’s cheek, the royal entourage subdued Piekarski and started looking up chiropractors.

It’s only a model: replica of the would-be assassin’s instrument on display in Warsaw.

Torture failed to elucidate a coherent motivation from a muddled mind. Reports had him only babbling nonsense, so attribution of the attack to religious grievance remains no more than partially satisfying; there were rumors of other more determined instigators to steer Piekarski’s mind towards regicide for their own ends. (Although he didn’t get the king, he did confer upon the Polish tongue the idiom “plesc jak Piekarski na mekach” — “to mumble like Piekarski under torture”.)

In the end, for Ravaillac’s crime, he took Ravaillac’s suffering: the Sejm condemned him to an elaborate public execution which comprised having his flesh torn by red-hot pincers as he was carted around Warsaw, until reaching a place called Piekielko (“Devil’s Den”) where the hand he had dared to raise against the king was struck off, and then what was left of his ruined flesh was torn into quarters with the aid of four straining horses.

On this day..

• 1943: Floyd McKinney
• 1927: Three Saragossa robbers
• Themed Set: Sexual Deviance
• 1702: David Myles, incestuous
• 1512: Five young Ottoman princes
• 1802: Captain William Codlin, maritime insurance scammer
• 602: Emperor Maurice and all his heirs
• 1835: John Smith and James Pratt, the last hanged for sodomy in Great Britain
• 1937: Eero Haapalainen, former Finnish Red Guard commander
• 1674: The Chevalier de Rohan and Franciscus van den Enden
• 1911: Ah Q
• 1871: Eight Cuban medical students
• 1987: Jacek Lazar condemned