The Siege of Jerusalem (7 June – 15 July 1099) was waged by European forces of the First Crusade, resulting in the capture of the Holy City of Jerusalem from the Muslim Fatimid Caliphate, and laying the foundation for the Christian Kingdom of Jerusalem, which lasted almost two centuries. The capture of Jerusalem was the final major battle of the first of the Crusades to liberate and occupy the Holy Land begun in 1095. A number of eyewitness accounts of the siege were recorded, the most quoted being that from the anonymous Gesta Francorum. Upon the declaration of the secular state, Godfrey of Bouillon, prominent among the leaders of the crusades, was elected ruler, eschewing the title "king." The siege led to the mass slaughter of thousands of Muslims and Jews and to the conversion of Muslim holy sites on the Temple Mount into Christian shrines.