Polyptyques were an invention of the ninth century, and although a few were created in later centuries, the ninth century was their golden era. They appear to have begun with Charlemagne ordering inventories of property and payments both on his own lands and on the lands of the great monasteries of his realm.
That's an image of Charlemagne on one of his coins. You'll note that he is portrayed like a Roman emperor.
Anyway, there is some thought that Charlemagne considered all the Frankish monasteries his property, which is why he wanted to know what was on their manors. The royal polyptyques do not survive, but there are still maybe a dozen monastic ones, plus fragments of others. They are a major source of information on the rural economy of the period.
For each manor (and a monastery would typically own dozens of manors), the polyptyque would list how much revenue was expected. Often the names of the tenants would be given, but a polyptyque was not intended to be a a census of people, so one cannot determine total population of a manor. The legal status of the tenants might be specified, using such terms as hospes, colonus, mancipius, or ingenuus. Although those composing the polyptyques clearly knew what was meant by these terms, scholars today have had serious debates over their meaning, and the twelfth-century successors of those who composed them seem to have had even less idea.
The tenants were sometimes although not always listed by name. The overwhelming majority of these names are male, which led a few decades ago to a scholar who should have known better claiming this showed that ninth-century peasant families killed baby girls. Now one would have thought that something as serious as infanticide would be mentioned in other sources if it was indeed practiced—it isn't. Even more basically, the lists of tenants just gave the name of the head of the household, not of spouse and children, and, as in the US through the twentieth century, the man was considered the natural head of household. Thus there is no reason to use the polyptyques to argue for female infanticide.
Most polyptyques do not survive on their original ninth-century parchment, but only as copied into cartularies in the twelfth and thirteenth centuries. Here's a picture of a cartulary, a collection of documents all carefully copied into a single book.
Enough had changed in the rural economy and manorial organization between the ninth century and the twelfth or thirteenth centuries that the cartulary scribes often had trouble figuring out what the polyptyques meant. Sometimes property enumerated in them had been lost to the monastery for generations. The ninth-century handwriting was clear enough three centuries later, but the vocabulary had changed. Yet clearly these lists of manors and dues were an important part of a monastery's history. The scribes abbreviated heavily and hoped for the best.
© C. Dale Brittain 2020
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