In the late Middle Ages, kinship ties within the European aristocracy were of major importance for cultural exchange processes at princely courts. A relatively dense network of marriage relationships formed the basis for a wide range of different contacts; and the increasing mobility towards the end of the Middle Ages intensified this even further. These relationships also favoured the exchange and communication of princely fashions between different regions and countries. During the subsequent transition from the Middle Ages to the early modern period by the end of the fifteenth and the beginning of the sixteenth century, princely dress practices were not just determined socially but also and above all culturally. Anchored in specific life worlds, they maintained not only social position, lineage, and/or family status, but also specific, although not clearly circumscribed, geographical spaces. Contemporaries already registered differences between domestic and foreign princely dress very precisely and assumed that there were several simultaneously coexisting, spatially linked fashions. Envoys and emissaries who helped communicate news and cultivate social contacts reported on dress customs at other courts, and they frequently took robes or fabrics home as presents. Aristocrats receiving their training at several different courts also spread knowledge about foreign dress styles. However, what were likely even more significant for the exchange of fashions were the personal meetings between the aristocrats themselves that occurred – frequently on the basis of existing familial ties – within, for example, the framework of court feasts, longer stays for educational and training purposes, and political negotiations or visits.