Richard de Monbasto, The Martyrdom of St. Hippolytus

14th century
Manuscript illustration
Bibliothèque Nationale de France, MS. Richelieu MSS. Fr. 185

In this image horses pull the saint's body apart, as is recounted in some versions of his vita. Others, including the Golden Legend, say horses dragged him through rough terrain until he died.

Read more about images of St. Hippolytus.

Source: this page at Wikimedia Commons.