
1) Penance site for Henry IV
Found on
https://www.crosswordclues.com/clue/canossa

Canossa (Province of Reggio Emilia) is a comune and castle town in Emilia-Romagna, famous as the site where Holy Roman Emperor Henry IV did penance in 1077, standing three days bare-headed in the snow, in order to reverse his excommunication by Pope Gregory VII. The Walk to Canossa is sometimes used as a symbol of the changing relationship between...
Found on
http://en.wikipedia.org/wiki/Canossa

ruined 10th-century castle southwest of Reggio nell`Emilia in Italy, famous as the meeting place (1077) of Pope Gregory VII and Emperor Henry IV. ... [4 related articles]
Found on
http://www.britannica.com/eb/a-z/c/17

Ruined castle 19 km/12 mi southwest of Reggio, Italy. The Holy Roman Emperor Henry IV did penance here before Pope
Gregory VII 1077 for having opposed him in the question of investitures. ...
Found on
http://www.encyclo.co.uk/local/20688
No exact match found.