Ian Heath based his 13th century western european infantrymen (http://warfare.atspace.eu/Medieval2/Feudal-26-30-Infantrymen-13C.htm) on:
f10r. Joshua Defeated at Ai, in the Morgan Crusader Bible of Louis IX or Maciejowski Bible (http://warfare2.netai.net/Medieval/Morgan-Maciejowski-Bible-10r-upper-right.htm)
f27v. The War Effort, in the Morgan Crusader Bible of Louis IX or Maciejowski Bible (http://warfare2.netai.net/Medieval/Morgan-Maciejowski-Bible-27v-large.htm)
f3v. Abraham's Vengeance, in the Morgan Crusader Bible of Louis IX or Maciejowski Bible (http://warfare2.netai.net/Medieval/Morgan-Maciejowski-Bible-03v-upper.htm)
f23v. Saul Victorious, in the Morgan Crusader Bible of Louis IX or Maciejowski Bible (http://warfare2.netai.net/Medieval/Morgan-Maciejowski-Bible-23v-upper.htm)
Scenes from the life of St. John in an Apocalypse, England, c. 1250-1260 (http://warfare2.netai.net/Medieval/Apocalypse-Bodleian-Scenes_from_the_life_of_St_John-detail.htm)
(http://forums.totalwar.org/vb/attachment.php?attachmentid=11156&d=1383207113)
Others 13th century sources for infantry:
English soldiers & hunters in the Rochester Bestiary c.1230 (http://warfare.atspace.eu/Medieval/Rochester_Bestiary-1230AD.htm)
Chronica Majora by Matthew Paris, c.1240-53 (http://warfare.atspace.eu/Medieval2/Chronica_Majora.htm)
Spanish soldiers in Las Cantigas de Santa Maria of Alfonso X, c1284 (http://cantiga.co.nf/Cantigas_de_Santa_Maria.htm)
MIRROR SITE:
13th century western european infantrymen by Ian Heath (http://warfare.uphero.com/Medieval2/Feudal-26-30-Infantrymen-13C.htm)
Druzhina
13th Century Illustrations of Costume & Soldiers (http://warfare.atspace.eu/Medieval2/13C.htm)
Those are rather good !
Cheers - Phil
Nice one D