Solidus of Emperor Jovian — From Rasiel's Roman Imperial Type Set
Photo Credit: By The original uploader was Rasiel at English Wikipedia. - Transferred from en.wikipedia to Commons., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3241091

Athanasius of Alexandria —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=611837

Gregory of Nazianzus —
Photo Credit: By Unknown author - Unknown source, Copyrighted free use, https://commons.wikimedia.org/w/index.php?curid=849075

Eusebius —
Photo Credit: https://www.learnreligions.com/eusebius-biography-4582544

Saint Basil — cropped from Statue of Saint Basil, depicting him in Western vestments, in the Church of St. Nicholas, Mala Strana, Prague, Czech Republic.
Photo Credit: By Kostisl - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=2642910

A sculpture of John Chrysostom — In Saint Patrick's Cathedral, New York City - cropped
Photo Credit: By Doctor Swan - Flickr, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=2077646

Main building, university of Naples, Federico II —
Photo Credit: By Baku - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=74782606

Logo for University of Naples Federico II —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=13202122

Thomas Aquinas —
Photo Credit: By Thomas_Aquinas_in_Stained_Glass.jpg: https://www.flickr.com/photos/e3000/derivative work: Beao - Thomas_Aquinas_in_Stained_Glass.jpg, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=10720771

Saint Jerome in his study — cropped
Photo Credit: By Pieter Coecke van Aelst and workshop - Public Domain, https://commons.wikimedia.org/w/index.php?curid=18783800

Saint Augustine —
Photo Credit: By DonCamillo - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=36611541