St. Peter Martyr, of the Order of Preachers. On April 6 he suffered martyrdom for the catholic faith. – Roman Martyrology for April 29
In portraits this saint can be recognized by his Dominican habit and a sword or bloody gash in his skull. This refers to the manner of his assassination in 1252. In Caxton's translation of the Golden Legend, "a man of the heretics, which was hired thereto, ran upon him and smote him with his falchion on the head."
The ultimate source of the "falchion" detail is not the Legend but the inquest that followed Peter's death. It said the gash was caused by "the force of the impact of a falchion, whose blade ends in two horns, like the moon."1 We see just such a weapon in the second picture at right.
The description in the inquest led some artists to picture something more like a bill-hook, as in the third picture, and by the time statues of the saint got to Mexico it had become more like a broad-axe, as in the fourth. It is rare for him to be pictured without either a weapon or a gash in his head (exception).
The "heretics" in question were Cathars, a sect that was then gaining strength in northern Italy and against whom Peter had been preaching. The Legend and the decree of canonization speak as if only one of the Cathars did the deed, but the inquest names two.2 It also speaks of a second blow to the saint, a dagger thrust into his shoulder, and of a second victim, a friar named Dominic. The second blow and the second friar are included in this painting. Some images picture the assailants as soldiers; others make them desperadoes in tattered clothing.
Many narrative images portray miracles performed through the saint's prayers during and after his lifetime (example - the severed foot). Two narrative cycles are in the chapel in Milan that houses Peter's remains. One is a set of frescos Vincenzo Foppa painted in 1468 in which we see the saint restoring a severed foot, exposing a fake apparition, making a cloud cover his hearers to keep them cool on a summer's day, and writing Credo ("I believe") in the dirt as falls from the assassin's blow. On the elaborate sarcophagus containing the remains, eight panels of relief sculpture follow his story from the preaching and miracles to his assassination and the development of his cult.
Most images of St. Peter Martyr make him a man in middle age, but in a few he is quite young, and some others give him a gray beard. He is often seen grouped with other Dominicans in the Order's churches (example).
Prepared in 2015 by Richard Stracke, Emeritus Professor of English, Augusta University. Revised 2017-01-16,30, 2020-08-04.