This is one of a set of panels (P00611, P00612, P00614 y P00617) from Saint Thomas in Avila, where they were very likely part of an altarpiece dedicated to Saint Peter, the Martyr of Verona. It originally stood beside the transept but was later in the upper cloister of the convent.

Saint Peter, the Martyr of Verona (thirteenth century) knew Saint Dominic and became a member of his new order, the Preachers or Dominicans, thanks to which he combated Manichean heresy and was appointed General Inquisitor. He was stabbed to death.