All these twin windows are from Steinbach, a small village which is part of the small town of Michelstadt im Odenwald. One can see that many of the older houses have shingles on the face of the buildings which is typical for the area.
And last not least the windows in the 1200-year-old basilica in the village, designed by Einhard, the biographer of Charlemagne. They are reinforced today and would not have had those bars in Einhard’s time.
Linked to Monday Window where more windows can be found.