In Scandinavian mythology, Huld is only referenced by völva

Völva

A vǫlva or völva is a shamanic seeress in Norse paganism, and a recurring motif in Norse mythology....

or seiðkona, that is a woman who practiced the seiðr

Seiðr

Seid or seiðr is an Old Norse term for a type of sorcery or witchcraft which was practiced by the pre-Christian Norse. Sometimes anglicized as "seidhr," "seidh," "seidr," "seithr," or "seith," the term is also used to refer to modern Neopagan reconstructions or emulations of the...

. She is mentioned in the Ynglinga saga

Ynglinga saga

Ynglinga saga is a legendary saga, originally written in Old Norse by the Icelandic poet Snorri Sturluson about 1225. It was first translated into English and published in 1844....

, Sturlunga saga and a late medieval Icelandic tale. In the latter source, she is Odin

Odin

Odin is a major god in Norse mythology and the ruler of Asgard. Homologous with the Anglo-Saxon "Wōden" and the Old High German "Wotan", the name is descended from Proto-Germanic "*Wodanaz" or "*Wōđanaz"....

's mistress and the mother of the demi-goddesses Þorgerðr and Irpa. As her name suggests, Huld may be in origin the same being as the Huldra

Huldra

In Scandinavian folklore, the Huldra , or the skogsrå or skogsfru/skovfrue or Tallemaja in Swedish culture, is a seductive forest creature...

 and the German Holda

Holda

In Germanic folklore as established by Jacob Grimm, Frau Holda or Holle is the supernatural matron of spinning, childbirth and domestic animals, and is also associated with winter, witches and the Wild Hunt...

.

Attestations

In the Ynglinga saga

Ynglinga saga

Ynglinga saga is a legendary saga, originally written in Old Norse by the Icelandic poet Snorri Sturluson about 1225. It was first translated into English and published in 1844....

it is related that she was first hired to kill the Swedish king Vanlade

Vanlade

Vanlandi or Vanlande was a Swedish king at Uppsala of the House of Yngling in Norse mythology. He was the son of Sveigðir whom he succeeded as king. He married a girl from Finnland , but forgot about her. In revenge, the girl arranged so that Vanlandi was hag ridden to death...

, by his wife Drífa. She "hag-rode

Mara (folklore)

A mare or nightmare is a spirit or goblin in Germanic folklore which rides on people's chests while they sleep, bringing on bad dreams . The mare is attested as early as in the Norse Ynglinga saga from the 13th century, but the belief itself is likely to be considerably older...

" him to death.

Vanlandi hét son Svegðis, er ríki tók eptir hann ok réð fyrir Uppsala auð; hann var hermaðr mikill, ok hann fór víða um lönd. Hann þá vetrvist á Finnlandi með Snjá hinum gamla, ok fékk þar dóttur hans Drífu. En at vári fór hann á brott, en Drífa var eptir, ok hét hann at koma aptr á þriggja vetra fresti; en hann kom eigi á 10 vetrum. Þá sendi Drífa eptir Huld seiðkonu, en sendi Vísbur, son þeirra Vanlanda, til Svíþjóðar. Drífa keypti at Huld seiðkonu, at hon skyldi síða Vanlanda til Finnlands, eða deyða hann at öðrum kosti. En er seiðr var framiðr, þá var Vanlandi at Uppsölum; þá gerði hann fúsan at fara til Finnlands, en vinir hans ok ráðamenn bönnuðu honum, ok sögðu at vera mundi fjölkyngi Finna í farfýsi hans. Þá gerðist honum svefnhöfugt, ok lagðist hann till svefns. En er hann hafði lítt sofnat, kallaði hann ok sagði, at mara trað hann. Menn hans fóru til ok vildu hjálpa honum; en er þeir tóku uppi til höfuðsins, þá trað hon fótleggina, svá at nær brotnuðu; þá tóku þeir til fótanna, þá kafði hon höfuðit, svá at þar dó hann. Svíar tóku lík hans, ok var hann brendr við á þá er Skúta heitir. Þar váru settir bautasteinar hans.

Vanlande, Swegde's son, succeeded his father, and ruled over the Upsal domain Uppsala öd Uppsala öd, Old Norse: Uppsala auðr or Uppsala øðr was the name given to the collection of estates which was the property of the Swedish Crown in medieval Sweden. Its purpose was to finance the Swedish king, originally the "king of Uppsala", and they supported the king and his retinue while he... . He was a great warrior, and went far around in different lands. Once he took up his winter abode in Lapland Lapland (region) Lapland is a region in northern Fennoscandia, largely within the Arctic Circle. It streches across Norway, Sweden, Finland and the Kola Peninsula . On the North it is bounded by the Barents Sea, on the West by the Norwegian Sea and on the East by the White Sea... with Snae the Old Snær Snær Snærr, East Norse Sniō, Latin Nix, Nivis) 'snow', in Norse mythology seemingly a personification of snow, appearing in extant text as an euhemerized legendary Scandinavian king.-Icelandic tradition:... , and got his daughter Driva in marriage; but in spring he set out leaving Driva behind, and although he had promised to return within three years he did not come back for ten. Then Driva sent a message to the witch Völva A vǫlva or völva is a shamanic seeress in Norse paganism, and a recurring motif in Norse mythology....  Huld; and sent Visbur Visbur Visbur or Wisbur in Scandinavian mythology was a king of the House of Ynglings and the son of Vanlandi. He was burned to death inside his hall by the arson of two of his own sons in revenge for rejecting their mother and denying them their heritage... , her son by Vanlande, to Sweden Sweden Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund.... . Driva bribed the witch-wife Huld, either that she should bewitch Vanlande to return to Finland, or kill him. When this witch-work was going on Vanlande was at Upsal Gamla Uppsala Gamla Uppsala is a parish and a village outside Uppsala in Sweden. It had 16,231 inhabitants in 1991.As early as the 3rd century AD and the 4th century AD and onwards, it was an important religious, economic and political centre... , and a great desire came over him to go to Finland; but his friends and counsellors advised him against it, and said the witchcraft Seiðr Seid or seiðr is an Old Norse term for a type of sorcery or witchcraft which was practiced by the pre-Christian Norse. Sometimes anglicized as "seidhr," "seidh," "seidr," "seithr," or "seith," the term is also used to refer to modern Neopagan reconstructions or emulations of the...  of the Finn people showed itself in this desire of his to go there. He then became very drowsy, and laid himself down to sleep; but when he had slept but a little while he cried out, saying that the Mara Mara (folklore) A mare or nightmare is a spirit or goblin in Germanic folklore which rides on people's chests while they sleep, bringing on bad dreams . The mare is attested as early as in the Norse Ynglinga saga from the 13th century, but the belief itself is likely to be considerably older...  was treading upon him. His men hastened to him to help him; but when they took hold of his head she trod on his legs, and when they laid hold of his legs she pressed upon his head; and it was his death. The Swedes took his body and burnt it at a river called Skytaa, where a standing stone Standing stone Standing stones, orthostats, liths, or more commonly megaliths are solitary stones set vertically in the ground and come in many different varieties....  was raised over him.

Snorri also quoted some lines from Ynglingatal

Ynglingatal

Ynglingatal is a skaldic poem listing the kings of the House of Ynglings, dated by most scholars to the late 9th century.The original version is attributed to Þjóðólfr af Hvini who was the skald of a Norwegian petty king named Ragnvald the Mountain-High and who was a cousin of Harald Fairhair...

composed in the 9th century:

En á vit Vilja bróður vitta véttr Vanlanda kom, þá er trollkund of troða skyldi liðs grímhildr ljóna bága; ok sá brann á beði Skútu menglötuðr, er mara kvalði.

And Vanlande, in a fatal hour, Was dragg'd by Grimhild's daughter's power, The witch-wife's, to the dwelling-place Where men meet Odin face to face. Trampled to death, to Skytaa's shore The corpse his faithful followers bore; And there they burnt, with heavy hearts, The good chief killed by witchcraft's arts.

Later she was hired by Vanlade's grandchildren to kill his son Visbur

Visbur

Visbur or Wisbur in Scandinavian mythology was a king of the House of Ynglings and the son of Vanlandi. He was burned to death inside his hall by the arson of two of his own sons in revenge for rejecting their mother and denying them their heritage...

.

Vísburr tók arf eptir Vanlanda föður sinn; hann gékk at eiga dóttur Auða hins auðga ok gaf henni at mundi þrjá stórbœi ok gullmen. Þau áttu 2 sonu, Gisl ok Öndur. En Vísburr lét hana eina ok fékk annarrar konu; en hon fór til föður síns með sonu sína. Vísbur átti son er Dómaldi hét; stjúpmóðir Dómalda lét síða at honum úgæfu. En er synir Vísburs váru 12 vetra ok 13, fóru þeir á fund hans ok heimtu mund móður sinnar, en hann vildi eigi gjalda. Þá mæltu þeir, at gullmenit skyldi verða at bana hinum bezta manni í ætt hans, ok fóru í brott ok heim. Þá var enn fengit at seið ok siðit til þess, at þeir skyldu mega drepa föður sinn. Þá sagði Huldr völva þeim, at hon mundi svá síða, ok þat með, at ættvíg skyldu ávalt vera í ætt þeirra Ynglinga síðan. Þeir játtu því. Eptir þat sömnuðu þeir liði, ok kómu at Vísbur um nótt á úvart ok brendu hann inni.

Visbur succeeded his father Vanlande. He married the daughter of Aude the Rich, and gave her as her bride-gift three large farms, and a gold ornament. They had two sons, Gisle and Ond; but Visbur left her and took another wife, whereupon she went home to her father with her two sons. Visbur had a son who was called Domald, and his stepmother used witchcraft Seiðr Seid or seiðr is an Old Norse term for a type of sorcery or witchcraft which was practiced by the pre-Christian Norse. Sometimes anglicized as "seidhr," "seidh," "seidr," "seithr," or "seith," the term is also used to refer to modern Neopagan reconstructions or emulations of the...  to give him ill-luck. Now, when Visbur's sons were the one twelve and the other thirteen years of age, they went to their father's place, and desired to have their mother's dower; but he would not deliver it to them. Then they said that the gold ornament should be the death of the best man in all his race, and they returned home. Then they began again with enchantments and witchcraft, to try if they could destroy their father. The sorceress Völva A vǫlva or völva is a shamanic seeress in Norse paganism, and a recurring motif in Norse mythology....  Huld said that by witchcraft she could bring it about by this means, that a murderer of his own kin should never be wanting in the Yngling race; and they agreed to have it so. Thereafter they collected men, came unexpectedly in the night on Visbur, and burned him in his house.

It is said in Sturlunga saga that Sturla Þórðarson

Sturla Þórðarson

Sturla Þórðarson was an Icelandic politician/chieftain and writer of sagas and contemporary history during the 13th century.Sturla was the son of Þórður Sturluson and his mistress Þóra. He was a nephew and pupil of the famous saga-writer Snorri Sturluson...

 entertained King Magnús lagabœtir

Magnus VI of Norway

Magnus VI Lagabøte or Magnus Håkonsson , was king of Norway from 1263 until 1280.-Early life:...

 with a story about Huld in 1263, which he told "better and more cleverly than any of those present had heard before" (betr ok fróðligar en nokkurr þeira hafði fyrr heyrt, er þar váru). According to Sturlunga saga, the story was about a great troll

Troll

A troll is a supernatural being in Norse mythology and Scandinavian folklore. In origin, the term troll was a generally negative synonym for a jötunn , a being in Norse mythology...

-woman and was well received by the king's followers and by the queen; it took a good part of the day to tell.