This conference (Tournai, TAMAT Musée de la tapisserie et des arts textiles) was at the interface between two scientific projects coordinated by the Royal Institute for Cultural Heritage, KIK-IRPA: the Brain project OrnaSacra and the Fed-twin project CHRISTINA. It provided an opportunity to present the results of work carried out by teams from KIK-IRPA, KULeuven and UCLouvain.