Investiture Controversywas a conflict between the secular and spiritual, authority, which was marked by pope Gregory VII and emperor Henry IV.The conflict started once the Church became stronger by implementing the Cluniac Reform, supported by the leaders of the Saxon dynasty. Followers of the Cluniac Reform spread their influence and built monasteries that depended on them. They fought against simony, nicolaitanism and lay investiture. The reformed Church, with increased influence and approval of the society, was now able to start a conflict with the secular leaders and demand their submission. After assembling the Concordat of Worms the conflict subsided, but only formally. It then became apparent that the problem wasn’t solely in the issue of investiture. This lead to the next question “Will the lead be taken by spiritual or secular authorities?”. During that time some new religious orders appeared, but so did some heretical movements. Some of the other products from this period of time were the crusades, a change within the selection of the Pope and, not to be forgotten, the Est – West Schism of 1054. The Saxon dynasty was followed by the Hohenstaufen dynasty, whose reputation grew because of Frederick II, who was excommunicated by the Pope on multiple occasions. Inocent III was the most powerful pope, who spread his influence in almost all European countries at the time. Neither of the sides accomplished their goal, because the Hohenstaufen dynasty became extinct and the pope didn’t manage to achieve the power he wanted. For that reason, other monarchies took the chance to expand their power.