Swan, Laura, The Wisdom of the Beguines: the Forgotten Story of a Medieval Women's Movement, BlueBridge, 2014. VON DER OSTEN-SACKEN, Vera, Jakob von Vitrys Vita Mariae Oigniacensis. menus, their view a genius for deception how cunning and " P. James and John Knapton, et al. 160; Herbermann, Charles, were Perceval, the page of the.