On July 20, Keroularios received a letter from Konstantinos IX, brought by Stephanos, monk and oikonomos of Hagia Sophia, Ioannes, magistros and epi ton deeseon, and Konstas, vestarches and hypatos of the philosophers. According to Keroularios, it told him to anathematise the bull of excommunication. It blamed the trouble on some translators and Argyros, and reported the actions taken against them. Keroularios then convened a synod held in the great sekreton in Constantinople in which the bull of excommunication of 1054 and all those involved in its production were anathematized. After this judgement, the original of the bull was placed as evidence in the sekreton of the chartophylax. Beside the patriarch, six churchmen are specially listed as having been present, whilst a further fifteen were probably so, as they are attested for the subsequent synod in Hagia Sophia on July 24: its minutes imply that its own attendees had also been present on July 20