The Death of St. Peter Martyr Date (1530–1535) by Giovanni Girolamo Savoldo - Public Domain Catholic Painting

St. Peter Martyr, also called Peter of Verona, Italian San Pietro Martire or San Pietro da Verona, (born 1205?, Verona [Italy]—died April 6, 1252, near Milan; canonized 1253; feast day April 29), inquisitor, vigorous preacher, and religious founder who, for his militant reformation, was assassinated by a neo-Manichaean sect, the Cathari (heretical Christians who held unorthodox views on the nature of good and evil). Source

Girolamo Savoldo, also called Girolamo da Brescia (c. 1480-1485 – after 1548) was an Italian High Renaissance painter active mostly in Venice, although he also worked in other cities in northern Italy. He is noted for his subtle use of color and chiaroscuro, and the sober realism of his works, which are mostly religious subjects, with a few portraits, which are given interest by their accessories or settings, "some even look like extracts from larger narratives". Source