They've put forth a rationale for a plusible 1st wife (or mistress) of unknown name who had the first two sons.
https://fmg.ac/Projects/MedLands/SCOTLAND.htm#MalcolmIIIdied1093B

They've put forth a rationale for a plusible 1st wife (or mistress) of unknown name who had the first two sons.
https://fmg.ac/Projects/MedLands/SCOTLAND.htm#MalcolmIIIdied1093B
Yes, I know some people are set in their ways. Getting angry replied to change isn't wanted. However, in light of the plausible rationale by Cawley, perhaps the Scandinavians wouldn't be upset if a person-profile was created and linked to Malcolm.
NN probable 1st wife or mistress of Malcolm III
Wikitree (2024) still shows Ingilbjörg as the mother. Only at the bottom of the profile do we find this:
“There is much uncertainty about the nature of Malcolm's relationship with Ingibjörg, stemming from the fact that it is only mentioned in the Orkneyinga Saga and not in a single Scottish or English source. This is highly unusual, and has led some historians to speculate that Ingibjörg may have been a concubine rather than a wife. The dates of her first husband's probable death and the birthdates of the sons she had with Malcolm are also difficult to reconcile and have led to questions about their eldest son's legitimacy. Charles Cawley discusses these discrepancies in more detail here: http://fmg.ac/Projects/MedLands/SCOTLAND.htm#MalcolmIIIdied1093A”ht...
To keep Scandinavian lovers-of-tradition hawks at bay, the children wouldn’t have to be attached to the new person-profile as children. Instead, for the Overviews for both the new profile and Ingibjörg Finnsdóttir, I suggest putting Wikitree’s statement at the top—allowing reasoned academic integrity—and then lock the profile Overviews for both so the statement remains at the top of the overview.
Why my suggestion? Geni subscribers (like me) who also keep separate trees on Ancestry, MyHearitage, etc. can decide what they want to believe.
Or instead of inputting Wikitree's statement, a shorter one could be thus:
Cawley and his collaborators reason (2024) that "the identity of the mother of King Malcolm's sons Duncan and Donald is uncertain." For details, please review Medlands [http://fmg.ac/Projects/MedLands/SCOTLAND.htm#_ftnref321 "Scotland, Kings"] about Malcolm' first wife.
The main issue I see here is we're not quite certain when Thorfinn or Ingibjörg died. Or when either Duncan or Donald were born. If we knew the exact dates, it would help a great deal.
For example, Ingibjörg theoretically have died giving birth to Duncan, who could have been born before his father was King. Agree they may have never been married, but she may have been his wife and also not technically Queen. He was King from 17 March 1058. That doesn't seem too far off from Duncan's estimated birth date OR the estimated possible death of Thorfinn as 1060 shown here on Geni (allowing he also may have died a few years later). I have no explanation for Donald, however if going with this possibility, unless he was closer in age to his brother?
Hopefully this makes some sense. I'm exhausted from traveling. I do not have personal skin in the game as I have paths to both left as is or if you disconnect. I do think it makes sense to look at it more closely than Medlands vs the Saga since Medlands is also not certain, and will see if I can find anything to help support either.
Sourcing doesn't exist to prove the mother of Donald and Duncan.
Conversely, the sourcing that does exist creates for us unanswerable questions.
In my personal tree, I've assigned the two sons to a unknown mother.
I don't think Geni should detach them from Ingibjörg Finnsdótti; there's no source proving she wasn't their mother.
I do refer to my previous suggestion(s) as academically instructive.
"illegitimate" is mentioned at Medlands.
King Malcolm III & [his first wife] had [two] children:
1. DUNCAN ([1060/65]-murdered Monthechim/Mondynes, Kincardineshire 12 Nov 1094, bur Dunfermline Abbey, Fife). William of Malmesbury names Duncan as illegitimate son of King Malcolm, when recording that he was knighted by William II King of England[329]. There is no indication of the identity of Duncan's mother, as explained above. His birth date is estimated on the assumption that he was a child when given as a hostage in 1072, which precludes his being the son of Queen Margaret. It is possible that he was illegitimate, although there is no indication that he was thereby excluded from succession to the throne. ...
[329] Malmesbury, 400, p. 349.
The Project Gutenberg EBook of William of Malmesbury's Chronicle of the
Kings of England, by J. A. Giles
https://www.gutenberg.org/files/50778/50778-h/50778-h.htm
"Adopting the custom of his brother, he soothed the Scottish kings by his affability. For William made Duncan, the illegitimate son of Malcolm, a knight; and, on the death of his father, appointed him king of Scotland."
I don't think being called illegitimate addresses the question of who his mother was, however.
Given that
It seems to me that a note on the profile that there appears room for doubt is all that the situation calls for on Geni
There seems to have been a peculiar communication gap between Scottish and Orkney sources all through this period - Macbeth isn't mentioned in any Orkney sources either (bar possibly the muddled references to a "Karl Hundason").
Thorfinn we know was out of the picture sometime before 1066 (Harald Hardraada encountered no significant opposition in staging through the Orkneys and taking the boy-Earls Paul and Erlend as allies/hostages). That there is no reference in either set of sources to his taking either/any side in the events of 1057 is perhaps also significant....