Marinus I was probably a

Hypatus of Gaeta This is a list of the hypati, patricians, consuls, and dukes of Gaeta. Many of the dates are uncertain and sometimes the status of the rulership, with co-rulers and suzerain–vassal relations, is vague. Native rule (839–1032) Anatolian dynasty ...

in association with his father from 839 or thereabouts until he disappears from records abruptly in 866. From the abruptness of his disappearance, he and his father are often supposed to have been deposed violently by their successor Docibilis I. Marinus witnessed his father's land grants in 839 and later records give him the title ''

comes ''Comes'' ( ), plural ''comites'' ( ), was a Roman title or office, and the origin Latin form of the medieval and modern title "count". Before becoming a word for various types of title or office, the word originally meant "companion", either i ...

''. It has been suggested that a

prefect Prefect (from the Latin ''praefectus'', substantive adjectival form of ''praeficere'': "put in front", meaning in charge) is a magisterial title of varying definition, but essentially refers to the leader of an administrative area. A prefect's ...

of the name Kampulus was his son (Skinner, 35).

Sources

* Skinner, Patricia. ''Family Power in Southern Italy: The Duchy of Gaeta and its Neighbours, 850-1139''. Cambridge University Press: 1995. *Caravale, Mario (ed). ''Dizionario Biografico degli Italiani XL Di Fausto – Donadoni''. Rome, 1991.
Medieval Lands Project: Southern Italy.
{{DEFAULTSORT:Marinus 01 Of Gaeta Dukes of Gaeta 9th-century Italian nobility