Potitus

In his “Confesio,” St. Patrick gives the names of his father, Calpornius, and his grandfather, Potitus. His ancestry was added to later, incorporated into the legendary pedigrees found in the “Lebor Gabála Érenn.” The Profile for Potitus’s father from that collection can be found here: Odissus

According to a traditional Irish pedigree, he was a descendant of Noah's son Japheth through Magog and Nemhidh. See John O'Hart, Irish Pedigrees: Origin and Stem of the Irish Nation (reprinted 1989), 43, citing "MacFirbis's Genealogies".