The Spanish, Italian and Portuguese Old Masters all painted on hand-woven patterned linen canvases. This 'first layer' has been given only sporadic study by art historians. I started deciphering the weaving draft of El Greco’s 'The Burial of the Count of Orgaz', in 2016. It recently culminated in authentic, hand-woven reconstructions of historic canvases.
Titian 'The Vendramin Family' patterned canvas
...felt like a puzzle but I made the draft of the pattern of this canvas. I had to redraw an existing pattern in the weaving book from XVI century, Ziegler, Weber Kunst und Bild Buch. Will soon weave a reconstruction!