THey gained more power and got to have some control of the church. I am working on the same one
The appointment of church officials by kings and nobles rather than by the pope
Lay Investiture is too broad a topic to cover in a quick answer site like WikiAnswers, below are links to articles about it in WikiPedia and the Catholic Encyclopedia.
The appointment of church officials by kings and nobles rather than by church officials apex
Pope Gregory VII was one of the most prominent opponents of lay investiture during the Investiture Controversy in the 11th century. He believed that only the church had the authority to appoint bishops and saw lay investiture as an encroachment on the church's independence.
Both of these parties wanted to be in control. They thought they should be the head and didn't like each other.
The Mongolian invasion
lay investiture
ings or bishops
The Concordat of Worms.
Lay investiture
Question 5: Correct Answer- The Pope
king wants to put his friends in big offices but bishops choose. the lay is the secular part