French Flag Elongated —
Photo Credit:

Coronation of Philip II Augustus — in the presence of Henry II of England
Photo Credit: By Master of the City of Ladies - Vincent of Beauvais, Le Miroir Historial (Vol. IV)., Public Domain, https://commons.wikimedia.org/w/index.php?curid=9893558

Philip II of France — cropped A 19th-century portrait by Louis-Félix Amiel
Photo Credit: By Luclaf - http://www.culture.gouv.fr/public, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=30929266

Royal Arms of England (1198 - 1340) —
Photo Credit: By SodacanThis W3C-unspecified vector image was created with Inkscape. - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=10953091

Richard I being anointed during his coronation in Westminster Abbey —
Photo Credit: By Matthew Paris - A 13th-century chronicle. Chetham MS Ms 6712 (A.6.89), fol.141r, Public Domain, https://commons.wikimedia.org/w/index.php?curid=15543148

Effigy of Richard I — in the church of Fontevraud Abbey
Photo Credit: By Adam Bishop - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=17048652

Richard I — Richard I in profile, funerary effigy above the tomb containing his heart in Rouen Cathedral (early 13th century)
Photo Credit: By Giogo - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=19144076

Innocent III — honored by the U.S. House of Representatives
Photo Credit: By Sculpture by Joseph Kiselewski; photo by the Architect of the Capitol - http://www.aoc.gov/capitol-hill/relief-portrait-plaques-lawgivers/innocent-iii, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1355174

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