At the instance of Theodore Ascidas, and with the ostensible purpose of reuniting to the Church the Acephali, a sect of Monophysites, Justinian was induced to censure the "Three Chapters".
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Facundus was in Constantinople when this censure was pronounced, and shortly after its publication he and several other western bishops refused to subscribe to the decree, alleging that it was an attack on the Council of Chalcedon, which had accepted at least the letter of Ibas to the Persian Maris.