

The following websites, of interest shows his name as Fornjotr: It also shows his parents and grandparents and great-grandparents. Furthermore, it shows his wife.
https://gw.geneanet.org/sathazagthoth?lang=en&n=of+finland+kven...
https://gw.geneanet.org/sathazagthoth?lang=en&n=of+finland+kven...
This is of
Fornjot "the Ancient Giant", King of Kvenland is your 39th great grandfather.
You
→ Elza Dzelvite (Grahpe,Grāpe)
your mother → Jahn Grahpe
her father → Baron Arnold Julius von Vietinghoff-Riesch
his father → Juliane Charlotte Lulla von Vietinghoff
his mother → Helene Gertrude von Krüdener
her mother → Gustav Georg von Völckersahm
her father → Sophia Elisabeth von Mengden
his mother → Freiherr Magnus Gustav von Mengden, auf Altenwoga
her father → Freiherr Gustav von Mengden, auf Altenwoda
his father → Gertrud von Mengden Frfr. von Altenwoga
his mother → Jürgen von Rosen
her father → Kersten von Rosen
his father → Kersten III von Rosen auf Hochenrosen
his father → Jürgen l von Rosen
his father → Henneke von Tiesenhausen
his mother → Bartholomeus von Tiesenhausen, of Kokenhausen
her father → Johann von Tiesenhausen
his father → Princess Sofia von Hoya, a Princess of Polotsk and Countess of Hoya
his mother → Bernardus von Hoya
her father → Graf Heinrich von Hoya von Stumpenhusen
his father → Christine von Oldenburg
his mother → Salome van Gelre-Zutphen
her mother → Gerhard II, count of Guelders
her father → Clémence d'Aquitaine, De Limbourg Arlon
his mother → Pierre Guillaume 'l'Aigret' ou 'le Hardi' d'Aquitaine, VII Duc d'Aquitaine, V Comte de Poitou
her father → William V, duke of Aquitaine
his father → Guillaume 'Fier-à-Bras' de Poitiers, IV duc d'Aquitaine et II comte de Poitou
his father → Adèle of Normandy
his mother → Gange-Hrólfr 'Rollo' Ragnvaldsson
her father → Ragnvald Eysteinsson, Earl of Møre
his father → Eystein Ivarsson «the Noisy» Glumra
his father → Ivar Halfdansson, Opplendingejarl
his father → Halfdan "Gamle" Sveidasson
his father → Sveidi Heytirsson, Sea King
his father → Heytir Gorsson, Sea King
his father → Gor Thorrasson, Sea King
his father → King Thorri Snærsson, of Kvenland
his father → Snø "Den gamle" Frosteson av Kvenland
his father → Frosti Karasson, Mythical King of Kvenland
his father → King Kari ''Wind'' Fornjotsson, of Kvenland
his father → Fornjot "the Ancient Giant", King of Kvenland
his father
Spelling of the name
Scandinavia Fornjot, (Fornjótr).
English Fornjót
https://en.wikipedia.org/wiki/Fornj%C3%B3t