Church of Rome
The brief of convocation by Theodosius II was read. Then the legates to the Pope of the Church of Rome explained that although it would have been contrary to custom for their Pope to be present in person, the Pope of the Church of Rome had sent a letter with the legates to be read at the council. In the letter, Leo I referred to his dogmatic letter to Flavian, the Tome of Leo, which he intended the council to accept as a ruling of faith.