Catherine of Alexandria, also spelled Katherine, was, according to tradition, a Christian virgin and martyr, who suffered martyrdom in the early 4th century at the hands of the emperor Maxentius. Acco
Caravaggio, Saint Catherine of Alexandria, 1598–99, Thyssen-Bornemisza Museum
Icon of Saint Catherine of Alexandria, with scenes from her martyrdom
Saint Catherine of Alexandria by Artemisia Gentileschi, c. 1619
The Mystic Marriage of Saint Catherina by Anthony van Dyck, 1618-20.
Saint Barbara, known in the Eastern Orthodox Church as the Great Martyr Barbara, was an early Christian Syrian Greek saint and martyr.
St. Barbara with her attribute – three-windowed tower, central panel of St. Barbara Altarpiece (1447), National Museum in Warsaw
St. Barbara in her tower, right panel of the Werl Triptych by Robert Campin, 1438
The beheading of St. Barbara by Giulio Quaglio the Younger (1721–1723)
Saint Barbara in Santa Maria Formosa, Venice, c. 1520s