Example case where Hyperborean ↔ 'Frisian'

[Nordic]

The Greco-Roman usage of Hyperborea and Hyperborean seems to have been a cover-all term akin to 'Roman', 'Greek' (Yavana), 'Frank' and 'Norse'. When the Hyperboreans are described as being led by an trio of giant brothers with a solar temple, it reminds highly of Bock family saga Odenma 'sunland' house of Aser and the associated Finnish and Norse tales on the same family line as in three famous giant brothers. As seen in sons of Kaleva, or in Norse echoes as the sons of Fornjót or sons of Guðmundr of Ódáinsakr. All the characters have names after natural elements like wind, snow etc as in the Greek legend (Týr or THÍR of OL 058 is of this same lineage, in Old Norse Þorri son of Snæ or in Finnish Iku-Tiera son of Niera). The Odin brotherhood of Odin, Vili and Vé (↔ veli 'brother'?), being also descended from giants, is also a good match. But are there any specifically Frisian examples? There may be one in existence.

In OL narrative take on king Odysseus (OL: Ulysus, Latin: Ulysses) the Greek character has an affair with a maiden Kalip or Calypso (075-076). Not much is said of their fates afterwards other than that:

From this king [Odysseus], a scribe of pure Frya’s blood remained here, born at the new port of Athenia. [source: OL 076.]

In Greek view Calypso is daughter of Atlas (of Atlantis fame), implying dwelling outside of Mediterranean sea or even among the Hyperboreas (in some variants Atlas dwells among Hyperboreans e.g. Pseudo-Apollodorus, Bibliotheca 2. 114, 199). Wikipedia tells on this Calypso:

John Tzetzes makes her a daughter of Helios and the Oceanid nymph Perse, the parents of Circe, perhaps due to her association with Circe; the two goddesses were sometimes confused due to their behaviour and connection to Odysseus. [...] Homer does not mention any children by Calypso. By some accounts that came after the Odyssey, Calypso bore Odysseus a son, Latinus, though Circe is usually given as Latinus' mother. In other accounts, Calypso bore Odysseus two children, Nausithous and Nausinous.[source: Wikipedia on Calypso]

(The last two names remind highly of Nausicaa.) The academics have thus noted a Calypso ↔ Circe parallel and that they both were said to be mother of one Latinus. This Latinus is an important figure in the pre-Roman founder genealogy.

There is even further one version where the role of Odysseus is taken by Hercules (perhaps as an archetype) and it's here where we encounter the Hyperborean association:

§ 1.43.1 Some say that he also left sons by two women in the region now inhabited by the Romans. One of these sons was Pallas, whom he had by the daughter of Evander, whose name, they say, was Lavinia; the other, Latinus, whose mother was a certain Hyperborean girl whom he brought with him as a hostage given to him by her father and preserved for some time untouched; but while he was on his voyage to Italy, he fell in love with her and got her with child. And when he was preparing to leave for Argos, he married her to Faunus, king of the Aborigines; for which reason Latinus is generally looked upon as the son of Faunus, not of Hercules.
[Source: Dionysius of Halicarnassus, Roman antiquities.

This all allows to make the following thematic narrative comparison:

• Odysseus ↔ Ulysus ↔ Hercules

• Calypso the Hyperborean ↔ Kalip ↔ Circe the Hyperborean

• child Latinus ↔ (no child explicitly mentioned) ↔ child Latinus.

The OL version does not mention a child ("He lingered there with her for years, to the annoyance of all who knew it"), but we can see from the comparison clearly that thematically the role of a Hyperborean girl is taken in OL version by Kalip the Frisian.