Placed for centuries in general indifference, in a niche of the church of St. Dominic in Fabriano, the rather poorly preserved statue was mistakenly considered, for centuries, an eighteenth-century work. The sculpture, made of carved and painted poplar wood, is life-size and represents Saint Peter Martyr, the Dominican friar, inquisitor who was assassinated on March 24, 1252 with a falchion near Milan. The iconography of the Saint is linked to the aggression suffered by the heretics, in fact he is often represented with a split forehead, sometimes with the palm, symbol of martyrdom or just as in the case of the Fabriano sculpture, with the book written Credo between his hands and the falchion originally stuck in the martyr's head, and now, after restoration, placed on the base of the work. The sculpture shows clear stylistic analogies with other works by Donatello: the martyr's face characterized by well-modeled features, the strong forehead, cheekbones, and chin evoke the memory of the face of Gattamelata, that leader who stands proud on his horse in front of the basilica of St. Anthony of Padua or in the portrait of Niccolò Uzzano, Italian politician, humanist, gonfaloniere of Justice of Florence or the prophet Jeremiah of the cathedral of the Florentine capital. Another factor of considerable importance that supports the attribution of the sculpture to Donatello concerns the dense network of relationships between the Florentine Dominicans and those of Fabriano, between the city of Fabriano and that of Florence.