I believe the new rules you have set are quite unfair to me. I would like to suggest that you change them.
I think the rules now are fine as is, so I will not be changing them.
They are a direct attack on my own rights!
Well, since I am pope, I should be able to have supreme authority over everyone else.
Perhaps I should name my own bishop. Maybe then the pope would change his mind...
King Henry IV is requesting that Pope Gregory's new rules were unfair for him, and that he wants them changed. Pope Gregory refuses, which then leads to a long conflict between them. This conflict lasted several months.
Gregory, I have come to remove you as pope.
Henry, I've had quite enough of you. You are now excommunicated!
Henry is furious at the fact that the pope did not decide to change the rules. He then states his opinion on them, but Gregory still refuses. This causes Henry to take action against the new rules.
I should probably apologize for what I did..
In response to the rules, Henry decides to ignore them and name his own bishop. This did not work out, as Gregory soon found out and named his own rival bishop. However, Henry still decides to ignore these rules further.
Gregory, I am sincerely sorry for what I have done to you. Please forgive my past actions.
Hm. Okay, Henry, I accept your apology. Your excommunication is now over.
Out of nowhere, Henry comes up to Pope Gregory and tries to remove him from his position. This, however, failed overall. Gregory, in response to this, then decides to excommunicate Henry from the Church.
Trying to end his excommunication, Henry waited outside the castle until the pope would see him. It ended up taking about three days of standing outside waiting for the pope. Once the pope agreed to see him, Henry went inside the castle to apologize.
Henry apologized to the pope for his actions against him. Gregory accepted his apology and agreed to end Henry's excommunication from the Church. Even though the pope forgave him, Henry ended up forcing the pope out from office.