Last week I started to work on sheepskin gown known in medieval times as a "pellicea" (in Central Europe named "torlop" or "kozukhy"). The most characteristic for this kind of clothes is that they haven't outer layer of cloth, just one layer of fur (the visible side of garment is leather not hairs). In polish medieval chronicles "torlop" is mentioned from the end of 14th century as a garment of court and nobility members. The "torlop" made from sheepskin was favorite gown of polish king Vladislavus Jagiello at the beginning od 15th century and the same type of garment was also worn by sons of king Casimir at the second half of 15th century.
I found just 4 fine pictural evidences of this type of clothes from Koeln/Cologne, Darmstadt and Danzig/Gdansk. All of them are from years 1430-1490. The most interesting for me was example from Darmstadt because it's example of children garment: