There is evidence for some craft specialization, and the transport over considerable distances of materials such as stone and, above all marine shells, much used for jewellery and probably decorating clothes, which have been found from Mediterranean species at Gönnersdorf, over 1,000 kilometres from the Mediterranean coast.
In 1136, Gönnersdorf had its first documentary mention as Guntersdorf in connection with a donation document from Bishop Alberos von Basel to the Lordship of Kerpen.