These letters are above the larger letters and discribe the start of the plague in the village
Move your mouse over the image below to highlight words and decode the Graffiti
The above words are in their original:
Primula pestis i (n) m ter ccc fuit l minus uno
and in translation:
Just the first plague was in 1000, 300 and 50 minus 1
Note the interesting form used for the year of 1349.
The letters in brackets is missing from the wall.