Letter dated 19.6.1819 from Brøndsted to Holger Halling Aagaard (from this it appears that the order was awarded at the Emperor’s departure from Rome. According to Friedrich Noack: Das Deutschtum in Rom seit dem Ausgang des Mittelalters, Berlin & Leipzig 1927, vol. II, p. 182, this took place on 11.6.1819).
Letter dated 30.9.1819 from Frans 1. to Thorvaldsen (from this it appears that the order was awarded earlier that year).
Letter dated 9.12.1819 from The Danish Ordenskapitlet to Thorvaldsen (obtains permission to wear the Order from the Danish king).