Sir Peter Paul Rubens, Portrait of a Young Woman, Half-Length, Holding a Chain:

• Katlijne Van der Stighelen and Hans Vlieghe, Corpus Rubenianum Ludwig Burchard Part XIX (3): Portraits. Harvey Miller Publishers: London, Turnhout, 2021.
  Available for purchase here.
• Katlijne Van der Stighelen, “Zwischen Körper und Seele. Peter Paul Rubens als bahnbrechender Porträtmaler,” in Nils Büttner, Sandra-Kristin Diefenthaler, (cur.), Becoming Famous: Peter Paul Rubens, exh. cat., Stuttgart, 2021.

Giorgio Vasari, Allegory of Patience:

• Falciani, Carlo. “Vasari, Michelangelo e l’Allegoria della Pazienza’.” Paragone Arte, Anno LXX – N. 837, Terza Serie 148, November 2019.
• Falciani, Carlo. Vasari, Michelangelo and the Allegory of Patience. The Klesch Collection; Paul Holberton Publishing, 2020.
  Available for purchase here, in English and Italian.

Francesco Bassano the Younger, Christ on the Road to the Calvary:

• Mann, Judith W., ed. Paintings on Stone: Science and the Sacred 1530–1800. Munich; Saint Louis: Hirmer; Saint Louis Art Museum, 2020.

Sebastiano del Piombo, Portrait of a Warrior, said to be Ippolito De’ Medici:

• Baker-Bates, P. “Technical Experimentation in the Art of Sebastiano del Piombo: Some Further Thoughts.” Colnaghi Studies Journal 06, March 2020.
• Mann, Judith W., ed. Paintings on Stone: Science and the Sacred 1530–1800. Munich; Saint Louis: Hirmer; Saint Louis Art Museum, 2020.

Tiziano Vecellio, called Titian, Double portrait of Guidobaldo II Della Rovere, Duke of Urbino, and his son, Francesco Maria II:

• Matthew Hayes, “Titian’s Portrait of Guidobaldo II Della Rovere and his Son Francesco Maria II: Technique, Change, and Conservation,” Kermes 114/115, April – September 2019, pp. 109-118.
• Anne-Marie Eze, Matthew Hayes, Ian Kennedy and Ian Verstegen. Titian, the Della Rovere Dynasty, & his Portrait of Guidobaldo II and his Son. The Klesch Collection; Paul Holberton Publishing, 2021.
  Available for purchase here.

Hans Baldung Grien, The Holy Family with Five Angels:

• Jacob-Friesen, Holger, et al. Hans Baldung Grien. Heilig/Unheilig. Berlin: Deutscher Kunstverlag; Staatliche Kunsthalle Karlsruhe, 2019.

Michaelina Wautier, A Young Man Smoking a Pipe:

• Van Der Stighelen, Katlijne. Michaelina Wautier. Glorifying a Forgotten Talent. Exh. cat. MAS: Antwerp, 2018.

Michaelina Wautier, Portrait of the Jesuit Martino Martini:

• Golvers, Noël. “The Newly Discovered Portrait of Martino Martini (mo. 28/03).” Proceedings of the International Conference “Martino Martini (1614-1661), Man of Dialogue”. Università degli Studi di Trento: Trentes, 2016.
• Van Der Stighelen, Katlijne. Michaelina Wautier. Glorifying a Forgotten Talent. Exh. cat. MAS: Antwerp, 2018.