1828
After a time spent in the marshes nearby , she was rescued by a priest and taken to a " certain impregnable fortress , " likely the fortified town of Canossa Castle near Reggio .
 Canossa Castle, Reggio
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Canossa Castle, Reggio