already in the world in the person of Frederick II, Holy Roman Emperor (who died in 1250). As the appointed year approached, spurious works began to circulate under Joachim's name: De Oneribus Prophetarum, an Expositio Sybillae et Merlini ("Exposition of the Sibyl and Merlin") and commentaries on the prophecies of Jeremiah and Isaiah. The Fourth Council of the Lateran, in 1215, condemned some of his ideas about the nature of the Trinity. In 1263, the archbishop Fiorenzo enhanced the condemnation of his writings and those of his follower Gerardo of Borgo San Donnino, joining a commission in the Synod of Arles, in which Joachim's theories were declared heretical. The accusation was of having an unorthodox view of the Holy Trinity. His views also inspired several subsequent movements: the Amalricians, the Dulcinians and the Brethren of the Free Spirit. All of these were eventually declared heretical by the Catholic Church. Joachimite interpretations became popular in the Protestant reformation, and even influenced some Protestant interpretations. Joachim also possibly influenced Dante. Of importance is the fact that Joachim himself was never condemned as a heretic by the Church; rather, the ideas and movement surrounding him were condemned. Joachim the man was held in high regard during his lifetime. Literary references The Divine Comedy of Dante Alighieri is largely inspired to the ideas of the Abbot by means of the interpretation given by his follower Pietro di Giovanni Olivi, active in Florence at the end of the XIII century. W. B. Yeats's short story "The Tables of the Law" tells about a single surviving copy of a certain book by Joachim of Flora and its powerful effects on its owner. For full discussion see Warwick Gould and Marjorie Reeves, Joachim of Fiore and the Myth of the Eternal Evangel in the Nineteenth and Twentieth Centuries (Oxford: Clarendon, 2001), rev & enlarged ed., Ch ix, "W. B. Yeats: a Noble Antinomianism", pp. 221–298. Joachim, referred to as Joachim Abbas, is referenced in James Joyce's Ulysses and Giacomo Joyce. Joachim is mentioned in Umberto Eco's medieval mystery The Name of the Rose. His influence on the Franciscan Spirituals and the rediscovery of his books foreseeing the advent of a new age are part of the book's background story in which an inquisitorial debate is held in a remote monastery where a number of murders take place. The sprawling conspiracy satire entitled the Illuminatus! trilogy of novels