Folda, Jaroslav, and Jonathan M. Bloom. “Jerusalem, Latin Kingdom Of.” Oxford Art Online, 2003, https://doi.org/10.1093/gao/9781884446054.article.t044665. 

Galavaris, George P. “SEALS OF THE BYZANTINE EMPIRE.” Archaeology, vol. 12, no. 4, 1959, pp. 264–70. JSTOR, http://www.jstor.org/stable/41663707. Accessed 18 Oct. 2022.

Jotischky, Andrew. “Politics and the Crown in the Kingdom of Jerusalem 1099-1187.” History Compass, vol. 13, no. 11, Nov. 2015, pp. 589–98. EBSCOhost, https://doi.org/10.1111/hic3.12257.

Nesbitt and Oikonomides, Catalogue of Byzantine Seals, vol. 5, 32, no. 9.19

Seals - Making and Marking Connections Across the Medieval World, edited by Brigitte Bedos-Rezak, and Carol Symes, Arc Humanities Press, 2019. ProQuest Ebook Central, https://ebookcentral.proquest.com/lib/holycrosscollege-ebooks/detail.action?docID=6034232.

Shotten-Hallel, V.R., & Weetch, R. (Eds.). (2020). Crusading and Archaeology: Some Archaeological Approaches to the Crusades (1st ed.). Routledge. https://doi.org/10.4324/9781315142883