 In September 1112 he was excommunicated by a Burgundian synod headed by Archbishop Guido of Vienne, the future Pope Calixtus II.According to scholar Stefan Weinfurter, the year 1111 was a turning point in the reign of Henry V. The recent unity between the Reform Church and the king broke and with it the ties of consensual rule between the king and the secular princes.In March 1112, the Investiture privilege was revoked by the curia on a Lateran council and designated as "depraved privilege" ("Pravilege").