It says it happened in the deanery of a different church in the fortress (nitpick: not surrounded by this fortress at that time). https://de.wikipedia.org/wiki/

It says it happened in the deanery of a different church in the fortress (nitpick: not surrounded by this fortress at that time). https://de.wikipedia.org/wiki/Peterskirche_(Erfurt) https://de.wikipedia.org/wiki/Peterskirche_(Erfurt) Its auxiliary buildings are long gone, and even auxiliary buildings from later centuries are long gone, too, and the church itself was converted and rebuilt many times.