According to several records dating to the Old Swiss Confederacy, a potential Sage operated during the time of the Protestant Reformation during the 1520's. It was also reported that this possible Sage was close to Reformation leader Huldrych Zwingli, but Abstergo Entertainment has so far not been able to substantiate these rumors.
However, it was mentioned in an email between Templars Sim Won-Shik and Ham Duck-Young that this potential Sage was possibly involved with the Reformation as well, if not a member of the clergy similar to Zwingli.