The Gesta Episcoporum Neapolitanorum records that "Athenasius iunior episcopus, nepos…præfati Athanasii præsulis, filius Gregorii consulis ac ducis" held the see for 22 years, 5 months and 2 days, after being consecrated by Pope John VIII "in ecclesia beati Nazarii martyris…in loco…Canzia, territorio Capuano".
Bishop of Naples. Athanasius blinded his brother in 878 and assumed control as ATHANASIUS Duke of Naples. Erchempert records that "Sergius" was captured by "proprio germano", blinded, and exiled to Rome, dated to 878. The Chronicon Ducum…Neapolis records that "Atanasius episcopus et dux" succeeded Duke Sergius (without specifying the relationship between the two) "11 anno 11 ind" and ruled 20 years, 3 months and 29 days. Pope John VIII committed 1400 mancusis to help the coup, but in 879 he excommunicated Duke Athanasius due to frustration at the latter's failure to break contact with the Muslims. Byzantium provided Duke Athanasius with troops which he used to attack Capua. Devoted to Byzantine culture, he secured and preserved for posterity many Greek manuscripts.
The name of Athanasius´s wife is not known. 1
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