JOHN I., Pope 523-526, a native of Tuscany. Nothing is known of his pontificate except his landing an embassy to the Emperor Justin II. at Constantinople, at the request of Theodoric. in regard to the execution of an Imperial edict against the Arians. On his return he was im prisoned by Theodoric, who was dissatisfied with the result of his mission. and died in captivity.— Jolly II., Pope 532-535. A Roman, Mercurius by name. lie appealed to Athalaric, King of the Goths, for aid in putting down simony, which was fearfully prevalent. His letters are in Migne. Patrologia ITT.. Pope 560-573.--Jonx IV., Pope 640-642..a Dalmatian by birth. He condemned the \lonothelites, and insisted that Honorius I. had not sanctioned their doctrine.—Jonx V., Pope 6,95-686. a Syrian, the first of several popes of Eastern birth, who owed their election to the influence of the exarchs. He had been sent by Pope Agatho as his legate to the sixth general council.—Joux VI., Pope 701-705. a Greek. He decided the prolonged con flict between Saint Wilfrid of York and the See of Canterbury in the former's favor. His letters
are in Migne. Patrologia Latina, lxxxix.---Joux VII., Pope 705-707, the immediate successor of the preceding.—JouN 'III.. Pope S72-SS2. A Roman by birth and Archdeacon of Rome before his elevation. He supported the claim of Charles the Bald to the Empire and crowned him in S75; two years later he upheld his disputed right in a great synod at Ravenna. The incursions of the Saracens in Lower Italy gave him much trouble, and after strenuously opposing any compromise with them, he was obliged to purchase exemption from their attacks by a yearly tribute. He made a determined attempt to reunite the Eastern Church with Rome, but was defeated by the crafty stubbornness of Photius (q.v.). His nu merous letters are in I,\Jig,ne, Patrologia Latina, cxxvi. Consult for the Eastern negotiations, Her genrother, Photius, Patriarch roe C'onstantinopel k Regensburg, 1867).