Kingdom of Jerusalem Ascalon. Since sets a lower bound for the Samaritan population at 1,500, since the contemporary "Tolidah", a Samaritan chronicle, also mentions communities in Gaza and Acre. Benjamin of Tudela estimated the total Jewish population of 14 cities in the kingdom to be 1,200, making the Samaritan population of the time larger than the Jewish, perhaps for the only time in history. The First Crusade was preached at the Council of Clermont in 1095 by Pope Urban II, with the goal of assisting the Byzantine Empire against the invasions of the Seljuk Turks. However, the main objective quickly became the control
Pope Urban II declarations against simony, lay investitures, clerical marriages (partly via the "cullagium" tax), and the emperor and his antipope. He facilitated the marriage of Matilda, countess of Tuscany, with Welf II, duke of Bavaria. He supported the rebellion of Prince Conrad against his father and bestowed the office of groom on Conrad at Cremona in 1095. While there, he helped arrange the marriage between Conrad and Maximilla, the daughter of Count Roger of Sicily, which occurred later that year at Pisa; her large dowry helped finance Conrad's continued campaigns. The Empress Adelaide was encouraged in her charges of sexual coercion against