Soon after the deposition and excommunication of Eutyches at the Home Synod in Constantinople on November 22, 448, Bishop Leo of Rome was not only informed of the result by Emperor Theodosius II, but also received a letter from Eutyches himself, complaining of judicial impropriety and appealing to Leo to review the decision. Around the same time Bishop Flavian of Constantinople, who had presided over Eutyches’s trial, wrote a letter to Leo in which he informed him of the deposition of Eutyches and attached the minutes of the proceedings. For some reason, however, this letter did not reach Leo until May 21, 449. In the meantime, not having all the information he needed to respond to Eutyches, on February 18, 449 Leo wrote a letter to Flavian requesting a full account and asked that the minutes of the synod be sent to him. Upon receiving Flavian’s first letter on May 21, Leo quickly penned his response to the Eutychian affair and on June 13, 449 sent to Flavian the letter that would come to be known as the Tome to Flavian of Constantinople.