The containers in the Pharma section

[david]

The heraldic decoration of pharmaceutical jars (usually with the designs of religious orders) was very common before the 17th century.
Benedictines, Cisternians, St James's, etc etc.
This interesting You are not allowed to view links. Register or Login to view. by Jaume E. Mercant Ramírez delves into the subject quite deeply (but it is in Spanish). He investigates, amongst other topics, the types of jars, their provenance and their designs in southern Continental Europe. See page 133 and following.
He doesn't go as far back as the 14th century, but leaves the implication of the tradition clear.

The healdic decoration was to indicate their healing properties by association. The elaborate designs on the jars marked them out as being specially designed and made for apothecaries. He doesn't, from my first skimming of the text, mention that the designs were for families.