 Complete the following phrase:  The First Crusade led to the establishment of the Kingdom of Jerusalem under Godfrey of Bouillon. The newly formed kingdom quickly faced major challenges, both internally and externally. Most of the Crusaders had gone home, leaving few seasoned fighters to protect the realm. A leadership crisis, with the death of Godfrey and continued push by the clergy against secular rule, was immediately seen. Neither the Seljuks to the north and west nor the Fatimids to the south were not content with the presence of the Western Christians, leading to further conflict. Conflicts that followed include the Crusade of 1101, the Norwegian Crusade from 11071110, the 