Saint Mary (the Blessed Virgin) with the Christ Child, Saint John the Baptist and Saint Catherine of Alexandria. Engraving by T. Verkruis after C. Sacconi after Titian.

Licence: Public Domain Mark

Credit: Saint Mary (the Blessed Virgin) with the Christ Child, Saint John the Baptist and Saint Catherine of Alexandria. Engraving by T. Verkruis after C. Sacconi after Titian. Wellcome Collection. Source: Wellcome Collection.