Sneaky seeds to plant in your heads...
By 1300 the allegorical parade in Dante's Divine Comedy harkened on astrological classical symbols and and times of day or weeks as well as the cardinal and other virtues. Even the ordering of the planets in the cosmic medieval universe included attributes and ideas built on Greco-Roman mythology and astrology...it was common enough, that the Mantegna ordering of 50 cards in Ferrara also echoed in places the Divine Comedy ordering of the heavenly spheres. I believe the Cardinal Virtues also make their appearance.
No devil or tower are in this allegorical game (Mantegna) and it may be this was one of the older card set patterns that was centered on more positive attributes for learning purposes. If one looks at art depictions of the Vices and Virtues in early example, the early depictions around Giotto (and Dante's) time showed both Vices and Virtues in sets that balanced one another. I can well believe that showing examples of the just the Virtues might eventually have become common; the virtue and it's attribute was enough for people to know this is the symbol to use to heal or strengthen them against the negative.
I'm still learning more, but I heard that by the 1450's, the travelling troupes that led to what we know as Italian Commedia D'Arte was in the popular culture. Usually, an allegorical figure or archetype such as the 'miser' or 'hero' or 'fair maiden' would make up the cast of characters...so the culture was sophisticated enough to recognize such archetypes.
Between 1350 and 1450 Milan had bouts that included plague (they walled up the victims homes, whether the occupants were alive or not), changes in political leadership that echoed brutal times. Milan almost succeeded in invading Florence. However, the alliances of Ferrara and Milan seemed to be quite strong, to the point of pledging toddlers in marriage to one another.
On the Milan side of the house, the Visconti stories make great reading...the highlight for me was Bianca Maria and the popular coronation of Sforza to be the next Duke of Milan. Quite a contrast to my Ferrera histories of how ancient Borso became nominated as a Duke by the aging Pope.
The older Milan-based patterns Visconti Madrone and Cary Yale have faith, hope and charity, the old fashioned cardinal virtues. I believe this came from influences related to the Mantegna and courtly influences between Milan and Ferrara.
Kaplan makes a few suggestions in regards to the above, but my agreement (and assumptions*) comes from lectures in Renaissance studies and books related to Ferarra court figures.
*And you are free to ask me for references or to correct me---there are many excellent readers and students in this group that have better information than myself.
Mari the hopefully not too mistaken...