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!
late 15th century France - Tours
New York, The Morgan Library
Prayer book of Anne de Bretagne (made by Jean Poyer)
fol. 10v - Anne at confession
http://www.themorgan.org/collections/swf/exhibOnline.asp?id=364