U 123
Karlberg, now destroyed


Runic inscription:

Sigfast and Ärnfast they carve (the stone) for themselves

sikfastr : ok : ernfastr : žaiR : iuku : at : sik :
 


Year 1624
Johannes Bureus makes this drawing of the runestone and then Sigfast's S-rune is included, the one missing from the later drawing.

Year 1864
The rune slab is blown to pieces when the railway is built. A smaller piece of it is said to have been found in the railway wall, "opposite the pond in Karlbergs park" but has now disappeared again.

1905-1914
A few more pieces of the rune carving were found in an outbuilding at "Ingentings gård", but these too have now also disappeared.


The runecarver:

I think this is Ärnfast's second rune carving (or first) and he does it together with someone called Sigfast. Both have the surname -fast so they should be relatives, maybe even brothers.

Earnest future work as a rune carver will be carried out mainly in today's Ekerö municipality. The runic carving I guess is his first is U 52 in Edeby on Lovö which is also directly on the rock slab.


Links

Upplands Runinskrifter > Page 183
(Only in Swedish)

Runor >  Riksantikvarieämbetet

Google map > Find the place where the runic carving was

kalle@runristare.se
If you want to be of help or have a question.

 


More Runestones

All runestones in Ekerö municipality >


Outside Ekerö municipality

Sö 141b - Aspa bridge with the word Svitjod (Sö Fv1948;289)

Sö 179 - Gripsholm, an Ingvar runestone

U 79 - Hässelby, carved by Ärnfast

U 123 - Karlberg, carved by Ärnfast

U 885 - Balingsta, carved by Ärnfast

U 887 - Skillsta, one of the most beautiful

U 1125 - The old man in Krogsta is 1500 years old

Vg 181 - Olsbrostenen, Västergötland / New 2026

Vs 29 - A masterpiece by Livsten
 


U 123
Karlberg, now destroyed
 

Uppdaterad 19 februari, 2026 av Kalle Runristare