e/John the Deacon (Neapolitan historian)

Information
has gloss	eng: John the Deacon (d. after 910) was a religious writer and deacon, or head of a diaconate at the church of Saint Januarius in Naples. He flourished towards the end of the ninth and the beginning of the tenth century, and from his writings appears to have been a very learned and accomplished cleric. He wrote several historical works, important sources of information for the history of his time.
lexicalization	eng: John the Deacon
instance of	c/10th-century deaths