Pope John IV (died of cancer, October 12, 642) was elected pope, after a four-month sede vacante, December 24, 640.John was a native of Dalmatia, and the son of the scholasticus (advocate) Venantius. At the time of his election he was archdeacon of the Roman Church, an important role in governing the see. As John's consecration (on November 24) followed very soon after his election, it is supposed that the papal elections were being confirmed by the Exarch of Ravenna rather than by the Emperor in Constantinople.
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