Much Marcle, St Bartholomew Walter de Helyon, 1350
Lengberg Castle brassiere - 5 by learningtofly_katafalk, via Flickr
Lengberg Castle brassiere - front by learningtofly_katafalk, via Flickr
Bust-supporting shift is based on medieval extant illustrations and is constructed by this blogger very similarly to a Regency bodiced petticoat.
FOUR WOMEN SEWING LINEN CLOTHES FROM THE TACUINUM SANITAS OF VIENNA, LATE 14TH CENTURY. NOTE THE SCISSORS, CLOTH, TABLE AND BASKET
Woman on left wearing a cap. Woman on right wearing a veil and wimple over a fillet.
1445-1452 Bernat Martorell, Altar of the Transfiguartion
Rogier van der Weyden, The Lamentation 1460-80
Overy belt - Hugo van de goes - massacre of the innocents triptych 1470
Detail - Calvary Triptych, Hugo van der Goes, 1465-68. Blog by Sylvie la Chardonniere regarding the 15th century waisted kirtle.