Anonymous Florentine Painter
St. Ignatius of Antioch

Tempera and oil on panel
Rijksmuseum, Amsterdam, bequest of J.W.E. vom Rath

Here as in a few other images, the saint's attribute is a heart inscribed with a form of the name of Jesus.

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More of St. Ignatius of Antioch

Source: Rijksmuseum Amsterdam via Wikimedia Commons