How do the shields on Limoges traveling candlesticks show that they were secular objects?

The secular nature of Limoges traveling candlesticks is demonstrated by the inclusion of shields of arms belonging to noble French families, which were used to enrich the objects.1

In the context of medieval society, these coats of arms served as hereditary symbols used to establish identity, denote family descent, and signify property ownership. By featuring the specific heraldic achievements of noble families, these candlesticks functioned as personal or domestic items rather than strictly ecclesiastical ones, reflecting the status and identity of the secular owners who commissioned or possessed them.21