Pope Urban II that was caused by the Great Schism of 1054. Others believe that Urban saw this as an opportunity to gain legitimacy as the pope as at the time he was contending with the antipope Clement III. A third theory is that Urban felt threatened by the Muslim incursions into Europe and saw the crusades as a way to unite the christian world into a unified defense against them. The most important effect of the First Crusade for Urban himself was the removal of Clement III from Rome in 1097 by one of the French armies. His restoration there was supported
Simon II of Clermont Simon II of Clermont Simon II of Clermont-Nesle (c. 1210 – 1285/86) was Seigneur (Lord) of Ailly, Maulette and Nesle (in Picardy) . Note that there is a great confusion of names and titles within this family and with people with the same or similar names, as with many other medieval lords because of contradictory and incomplete documents. Simon was the eldest son Raoul I of Clermont-Nesle (c. 1185 – c. 1226), Seigneur of Ailly, Maulette, and perhaps Nesle "jure uxoris" and the Constable of France, who was son of Simon I, Seigneur of Ailly-sur-Noye , younger brother of Raoul