This story started with finding the thesis ‘A tela na pintura Portuguesa. Materiais e técnicas,do século XV ao século XIX’ by Rita Maltieira.
It was here where I found for the first time that a Portuguese painter had painted on a canvas with a pattern.
After having published this on my Facebook page, I received photographs from a tablecloth with a very similar pattern, that is owned by Jan Bustin, he bought it on a Belgium flee market.
Patricia Hilts has done an amazing work on translating the earliest weaving manual , ‘Weber Kunst und Bild Buch’ by Marx Ziegler (1674)
and has published this in Ars Textrina, volume thirteen, december 1990
Here I found a graphic of a pattern similar to both the 17th century canvas as well as the tablecloth, which led me to the Autun triptych.