Saladin accepting the surrender of Guy of Lusignan — Saladin and Guy de Lusignan after battle of Hattin in 1187
Photo Credit: By Said Tahsine (1904-1985 Syria) - http://www.discover-syria.com/photo/11177/من%20أعمال%20سعيد%20تحسين, Public Domain, https://commons.wikimedia.org/w/index.php?curid=4645420

King Guy de Lusignan and King Saladin — Common consensus is that Jan Lievens used the Two biblical Magi from Peter Paul Rubens as the basis for this artpiece. It remains unclear though whether Rubens used the depiction of King Saladin and King Guy de Lusignan as the basis for the Adoration of the Magi. Some scholars argue for the latter given the clear difference in skin colour between the Magi and the fact that one of the Magi is chained.
Photo Credit: By Jan Lievens - Private collection, Public Domain, https://commons.wikimedia.org/w/index.php?curid=20291578

Guy of Lusignan — cropped
Photo Credit: By François-Édouard Picot - [1], Public Domain, https://commons.wikimedia.org/w/index.php?curid=890461

Coin of Ayyubid Az-Zahir — 1204, Aleppo, with a hexagram
Photo Credit: By PHGCOM - Own work by uploader, photographed at the British Museum, Public Domain, https://commons.wikimedia.org/w/index.php?curid=6105468

Death of Yolande-Isabella —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=827860

Isabella II as Queen —
Photo Credit: By Giovanni Villani - http://www.guide2womenleaders.com/womeninpower/Womeninpower1200-filer/image013.jpg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=5162887

Isabella II — cropped
Photo Credit: By Giovanni Villani - http://www.guide2womenleaders.com/womeninpower/Womeninpower1200-filer/image013.jpg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=5162887

Dominions of Frederick II — Kingdom of Sicily, Holy Roman Empire, Kingdom of Jerusalem
Photo Credit: By Barjimoa - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=65567130

Shield and Coat of Arms of the Holy Roman Emperor — based on the depiction in Codex Manesse (c. 1310)
Photo Credit: By Heralder & Tom Lemmens - File:Reichsadler Manesse.png, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=28723926

Ayyubid Sultanate in 1193 — Ayyubid sultanate at the death of Saladin, 1193 AD, showing its political subdivisions and cities. Borders are approximate only, especially in the Yemen and western Arabia. The primary resource used is the Encyclopedia of Islam, New Edition
Photo Credit: By Ro4444 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=39153303

Flag of Ayyubid — The Ayyubid dynasty is often represented by the colour yellow. "The Ayyubids and Mamluks, who succeeded the Fatimids in Egypt and Syria, retained the association of yellow with the ruler. Salah al-Din (Saladin), the founder of the Ayyubid dynasty, carried a yellow flag emblazoned with an eagle, supposedly inherited from the Zangid dynasty, whose protégé he had been." Jane Hathaway, A Tale of Two Factions: Myth, Memory, and Identity in Ottoman Egypt and Yemen
Photo Credit: By Ch1902 - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=3833246