In most cases, the names of those whom Sittow depicted did not reach us. Among those names that were preserved by history, there are glorified European monarchs, members of their families, and people of nobility.
Among the great variety of male portraits, there are only a few females. One of these works is Mary Rose Tudor's portraits (c.1514. Kunsthistorisches Museum, Gemäldegalerie, Vienna), the sister of King Henry VIII. Her gentle image, downy eyes, and calm monochrome color range resemble works painted on a religious plot. It is worthy of note that if we look closely at the works with the image of Catherine of Aragón as the Magdalene (c. 1515. Detroit Institute of Arts, Founders Society Purchase, General Membership Fund) and Madonna and Child (c.1515/1518. Staatliche Museen zu Berlin, Gemäldegalerie), we can identify in Maria Tudor in their faces. All three works were created almost at the same time, and the artist could specifically make the images on these two portraits similar to the «beloved» face of Mary.
As for the male images, they are all extraordinarily individual and are not quoted by the master. And of course, among the male portraits, the most vivid picture is the portrait of Diego de Guevara (c.1515/1518. National Gallery of Art, Washington, Andrew W. Mellon Collection. no. 13. cat. 13) from the national gallery in Washington – a simple, understandable, and at the same time highly artistic work. Perhaps the main difference between this painting and not only from other works of Sittow but also from other paintings of this period is the coloring of Guevara's face. When the rest of the people's faces are monotonous and at times deliberately pale, Sittow has achieved remarkable attention to the human image, to its fullness of life. This work shows us a person as he is, without trying to take from him an ephemeral spiritualized image.