In your own words, summarize the conflict between pope gregory vii and the holy  roman emperor, henry iv. use the words appoint, duty, excommunicate, beg, and  authority in your summary.   

Emperor Henry IV and Pope Gregory VII ... Holy Roman emperors always had to struggle to maintain their  special power, facing conflict on the two hand from various She waged a number of wars against Henry between 1080 and 1106.

Where are the subjestions