On this date in 1565, three men who schemed to assassinate Pope Pius IV were put to public death at the Capitol.
Pius was a pope of the counter-reformation; it was he who brought the Council of Trent to its conclusion.
And though generally noted for his moderation (and his enthusiasm for building), he was not above striking heads from shoulders. Upon his ascension a few years prior he had dealt harshly with the nephews of his predecessor.
Young Benedetto, clearly, could scheme a little himself, since he roped several buddies (Italian link) into a plot to murder the pontiff. In December 1564, they presented themselves at a papal audience, but apparently got cold feet. One of their number, a Cavalier Pelliccione, ratted the lot of them out before they could muster their nerve a second time: the good cavalier might have been motivated by having possession of treasonably pre-written letters to be sent to various dignitaries upon the pope’s violent deposition.
Pelliccione accordingly skated with a pardon, but two co-conspirators were sent to the galleys for life.
Benedetto Accolti, Antonio Canossa, and Taddeo Manfredi were dragged to the Capitol on January 27 and put to the gruesome public butchery — “like cows” — of the mazzolatura.
There are several resources that claim the plot was among Catholic ultras who found Pius a little on the heretical side. This Italian encyclopedia entry attributes to the astrologically-inclined Accolti a more nutty-prophetic ambition of a “papa angelico” who would unify Christendom.
Maybe he should have just exercised a little patience. Pius IV died in December 1565.
* Jonathan Unglaub, “Bernardo Accolti, Raphael’s ‘Parnassus’ and a New Portrait by Andrea del Sarto,” The Burlington Magazine, Vol. 149, No. 1246, Art in Italy (Jan., 2007).