with the deposed Byzantine patriarch, Photius, and sought to mediate between the patriarch and the pope and also to assuage the controversy over the Holy Ghost by assuming that the Latins understood the processio (procession) of the Holy Ghost from the Son in the sense of missio (transmission). Presumed identification with antipope Anastasius If a passage in the annals of Hincmar of Reims is genuine and Hincmar has not confused two men, then the bibliothecarius Anastasius is identical with the Roman presbyter Anastasius who in 874 became titular priest of St. Marcellus. This Anastasius had fled from Rome in 848, to reside in various cities. As a result of his flight he was excommunicated by a Roman synod in 850, and, as he did not return, was anathematized and deposed by another synod in 853. After the death of Pope Leo IV in 855 this Anastasius was elected as Antipope by the imperial party, but the rightfully elected Pope Benedict III gained the supremacy, and acted kindly towards the usurper. During the pontificate of Pope Adrian II, Anastasius became involved in serious difficulties when, in 868, his brother Eleutherius forcibly carried off the daughter of the Pope and soon afterwards killed her and her mother Stephania. Eleutherius was executed and Anastasius, who was regarded as the instigator of the murder, was punished by excommunication and deposition. He lived at the Imperial court and sought by the intervention of the Emperor to exculpate himself before the Pope. Joseph Hergenröther maintains that the bibliothecarius and the presbyter Anastasius (the antipope) were one and the same person, and weaves all the statements concerning the latter into the biography of Anastasius, while Joseph Langen considers them different persons. In August, 879, Zacharias of Anagni appears as Head of archives of the Roman Church, so Anastasius must have died shortly before this date. Translator and author Anastasius translated from Greek into Latin the "Acts" of both the Second Council of Nicaea and the Fourth Council of Constantinople, as well as several hagiographies of saints, along with other writings. Knowledge of Greek was so unusual that only he could revise his translations. The attribution to Anastasius of the ancient Latin translation of the Acts of the Third Council of Constantinople has been proved to be wrong on manuscript evidence by Rudolph Riedinger. He also compiled a historical work, "Chronographia tripartita", from the Greek writings of Theophanes,