Silk 15th century Burgundian Heartshaped Hennin or Henin, made by Angela Mombers. Buckram frame reinforced with metal wire, padded and decorated with galon and pearls. Silk false liripipe and cockscomb. Picture made by Margot Mi.
Hennins were all the rage for high-class ladies in the second half of the 1400s. Apparently this style of headdress is called a Butterfly Hennin. It looks bizarre, but I actually think it's more attractive than the Tudor gable hoods that became fashionable in the 1500s.