Note: I am not a professional fashion historian. If you spot any inconsistency or outright fallacy somewhere in the picture descriptions please feel free (or even better, obliged) to let me know!
end of the 13th century France or Flanders
Lausanne, Bibliothèque Cantonale et Universitaire
U 964: Biblia Porta
fol. 228r
15th century (first quarter?) France?
Paris, Bibliothèque nationale de France
Français 606: L´Epistre Othea by Christine de Pisan
fol. 4v - Perseus slaying the sea monster, saving Andromeda
http://gallica.bnf.fr/ark:/12148/btv1b60007552/f16.image
Casual monsterslaying.