Early & Fictional Frisian Genealogy

Dirk I is the earliest certain ancestor of the medieval counts of Holland. Medieval genealogists created a fictitious ancestry for him by inserting generations to link known historical figures.

Dirk was linked to Aldgisl, the earliest attested ruler in Frisia, and ultimately to Odin. This line made him a descendant of a brother of Hengist and Horsa, who led the Anglo-Saxon invasion of England.

Some experts believe Dirk I was plausibly the son of Gerulf II and probably somehow a member of the family of Nordalah comes et advocatus Fresonum who died 810.

Legendary Rulers of Frisia

1. Friso (313-245 BCE) fictitious, supposed son of Dhana Nanda (Agrammes I).
2. Adel (245-151 BCE) fictitious, supposed son of Friso, succeeded his father.
3. Ubbo (151-71 BCE) fictitious, supposed son of Adel, succeeded his father.
4. Asinga Ascon (71 BCE-11 CE) fictitious, supposed son of Ubbo, succeeded his father.
5. Diocarus Segon (11-46) fictitious, supposed son of Asinga Ascon, succeeded his father.
6. Dibbald Segon (46-85) fictitious, supposed son of Diocarus Segon, succeeded his father.
7. Tabbo (85-130) fictitious, supposed son of Dibbald Segon, succeeded his father.
8. Asconius (130-173) fictitious, supposed son of Tabbo, succeeded his father.
9. Adelboldus (173-187) fictitious, supposed son of Asconius, succeeded his father.
10. Titus Boiocalus (187-240) fictitious, supposed son of Asconius, succeeded his brother Adelboldus.
11. Ubbo (240-299) fictitious, supposed son of Titus Boiocalus, succeeded his father.
12. Haron Ubbo (299-335) fictitious, supposed son of Ubbo, succeeded his father.
13. Odilbald (335-360) fictitious, supposed son of Haron Ubbo, succeeded his father.
14. Udolph Haron (360-392) fictitious, supposed son of Odilbald, succeeded his father.
15. Richold I (392-435) fictitious, succeeded his wife's brother Udolph Haron. Richoldus was supposed son of Godwulf, who was also supposed father of Hengest and Horsa. Godwulf was supposed son of Geat, a descendant of Odin
16. Oldibald (435-470) fictitious, supposed son of Richold I, succeeded his father.
17. Richold II (470-533) fictitious, supposed son of Odibald, succeeded his father.
18. Beroald (533-590) fictitious, supposed son of Richold II, succeeded his father.
19. Aldgisl I (590-672), earliest historically attested ruler of Frisia, supposed son of Beroald, succeeded his father.
20. Radbod (672-723), historically attested, supposed son of Aldgisl, succeeded his father. His successor is unknown but later sources say he was succeeded by Poppo.
    1. Thiadsvind, Radbod's only documented daughter married 714 Grimoald the Younger, son of Pepin II. No known descendants.
    2. unknown child of Radbod was ancestor of a bishop of Utrecht, also named Ratbod, who died in 917.
    3. Poppo see below.
    4. St. Fris, possibly fictitious, supposed son of Radbod.
    5. Heila, supposed daughter of Radbod, married Ethelhard, King of the Saxons.
    6. Meili, supposed daughter of Radbod, married Aethelbert II Billung, Graf in Sachsen.
    7. Sindacilla / Odrade, supposed daughter of Radbod, married Wichbert, duke of Saxony.
21. Poppo (719-734) historically attested, supposed son of King Radbod, succeeded his father.
22. Aldgisl II (723-737), supposed son of Radbod, succeeded his father.
23. Gondobald (737-749), supposed son of Aldgisl II, succeeded his father.
24. Radbod II (749-775), supposed son of Aldgisl II, succeeded his brother.
25. Charlemagne (775-814), conquered Frisia.

Line to the Counts of Holland

1. Alfbad, historically attested, son of Poppo (above)
2. Nordalah, historically attested, supposed son of Alfbad
3. Gerulf I, historically attested, supposed son of Nordolah
4. Gerulf II, historically attested, supposed son of Gerulf I
5. Dirk I count in Holland, historically attested, supposed son of Gerulf II

Potestaats of Friesland

From Wikipedia: Potestaat

1. Magnus Forteman (809) fictitious
2. Focko or Taco Ludigman (819) fictitious
3. Adelbrik Adélen (830) fictitious
4. Hessel Hermana (869) fictitious
5. Igo Galema (before 886) fictitious
6. Gosse Ludigman (989) fictitious
7. Saco Reinalda (before 1167) fictitious
8. Sicko Sjaerdema (1237) fictitious
9. Reinder Cammingha (before 1306) fictitious
10. Hessel Martena (before 1313) fictitious
11. Juw Juwinga (1396) fictitious
12. Sicke Dekama , Gale Hania and Odo Botnia (1399)
13. Sjoerd Wiarda and Haring Harinxma (1404)
14. Juw Dekama (1494)

Sources

• James Anderson, Royal Genealogies (1732), for fictitious genealogy.
• Charles Cawley, Medlands: Holland & Frisia, for documented genealogy.
• Martino Hamconio Friso, Frisia seu de viris rebusque Frisiae illustribus (1602), for fictitious genealogy.