TEODORO I, PAPA. - Elected pontiff on 24 Nov. 642, he immediately took an open stand against the Ekthesis, an imperial edict in which the emperor Eraclio had professed Monothelitism (Mansi, X, cols. 702-705).
He endeavoured to obtain from Paolo, promoted to patriarch of Costantinopoli in 641, although his predecessor Pirro had not been canonically deposed, the institution of a regular trial and the latter’s own repudiation of the Ekthesis. Paolo refused; T. then deposed him and favourably received Pirro at Rome, where he solemnly abjured Monothelitism. But Pirro’s abjuration was merely a pretence; indeed, he retracted it when he lost all hope of recovering his patriarchal see; therefore a synod assembled at Rome condemned him to deposition. T. died on 14 May 640 without having been able to pacify the disputes between the Holy See and Costantinopoli.