The Christian armies united the pope with several South Italian princes of Lombard or Greek extraction, including Guaimar II of Salerno, John I of Gaeta and his son Docibilis, Gregory IV of Naples and his son John, and Landulf I of Benevento and Capua.
John I of Gaeta won the title patrikios from the Byzantine emperor, as a reward for defeating the Saracens.
John I (died 933 or 934) was the second hypatus of Gaeta of his dynasty, a son of Dociblis I and Matrona, and perhaps the greatest of medieval Gaetan rulers.
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