All of the following images come from a German book called Parzival. Best that I can decipher, it is a book on Percival and his role in the Arthurian tales.
http://manuscriptminiatures.com/search/?manuscript=4825 1443-1446 Germany
The first section contains all the images of mantles worn on helms. 
This last image shows what could be knights using bastons or wide swords.
This last image shows what could be knights using bastons or wide swords.
These two images show people wearing helms with feathered plumes on them. The first one rises from the brow, under the raised visor. The second has feathers coming from the top of the crown. Neither clearly show how the feathers are attached.
The final section shows un-armoured people wearing similar adornments on their head wear.
