Now for a look back in time, when DNA was far from being discovered!
https://manuscrits-france-angleterre.org
Some links will go to the British Library in England:
https://www.bl.uk/medieval-english-french-manuscripts
Other links will be from the National French Library (Bibliothèque Nationale de France, BNF) with an English version:
https://gallica.bnf.fr/accueil/en/content/accueil-en
![https://www.bl.uk/britishlibrary/~/media/bl/global/medieval%20england%20and%20france/thumbnails/making%20manuscripts%20thumbnail%201.jpg?crop=1&cropX=217&cropY=344&cropW=3421&cropH=1913&cropcachekey=121734434211913&w=640&h=360&dispW=640&dispH=360&hash=D078D927BD72628EBC97516FC301D9EE](https://www.bl.uk/britishlibrary/~/media/bl/global/medieval%20england%20and%20france/thumbnails/making%20manuscripts%20thumbnail%201.jpg?crop=1&cropX=217&cropY=344&cropW=3421&cropH=1913&cropcachekey=121734434211913&w=640&h=360&dispW=640&dispH=360&hash=D078D927BD72628EBC97516FC301D9EE)
Credit: Image on Bristish Library page https://www.bl.uk/medieval-english-french-manuscripts