Bergjlot (Thorborg) Halfdansdottir - Alternative data from Merges

Have I just lost the plot? :-) I can't see a medlands link at all, Debbie.

Happy to spend time here helping you, if you think it's got mucked up. Bjorn might be as well.

Following your link above:

THORFINN "the Black", son of SIGURD "Digri" Jarl of Orkney and Caithness & his wife Donada of Scotland ([1009]-[1060/65], bur Birsay, Christchurch). ...

m ([1045/50]%29 [as her first husband,] INGIBJÖRG Finnsdatter, daughter of FINN Arnesson [later Jarl of Halland in Denmark] & his wife Bergliot Halfdansdatter ([1030/35]-). Orkneyinga Saga names Earl Thorfinn’s wife as “Ingibjorg, the Earls’-Mother, daughter of Earl Finn Arnason” and niece of Kalf Arnason[888]. Snorre names "Ingebjorg, the earl-mother…a daughter of Fin Arnason" as wife of Earl Thorfin[889]. Morkinskinna records that “Thorfinn jarl [of] Orkney” was married to “Kálfr’s sister Ingibjorg Árnasdóttir” at the time Kalf Arnesson fled Norway[890]. The chronology is certainly tight for Ingibjörg to have been Kalf’s niece, if it is correct that she was already married when Kalf fled Norway, which must be dated to [1040/42] from the context in Morkinskinna. Her birth date is estimated on the basis of the estimated birth dates of her mother and her older son, both of which are restricted. Orkneyinga Saga records that “Ingibjorg the Earls’-Mother” (widow of Thorfinn) married “Malcolm King of Scots, known as Long-neck” (Malcolm III "Caennmor/Bighead" King of Scotland) and that “their son was Duncan, King of Scots, father of William”[891]. There must be considerable doubt about whether this can be correct. Ingibjörg's [first] husband died in [1060/65]. King Malcolm's marriage to Queen Margaret is dated to 1070, three years after her arrival at the Scottish court. Although this provides sufficient time after the death of her first husband for the king to have married Ingebjörg, and for Ingebjörg to have died, the chronology for the birth of two sons would be tight. In addition, it is unlikely that either of these sons was born after [1065], as explained in SCOTLAND KINGS. If the king had really married Ingibjörg during this time, and if she had given birth to two sons, the absence of any reference to her in either Scottish or English sources is all the more surprising. It is possible that King Malcolm's marriage to Ingibjörg (if it did take place) was more Danico, implying concubinage rather than regular marriage, but this does not change the chronological difficulties. The one puzzle which remains, if the Saga is not correct, is why the author would have fabricated this detail. http://fmg.ac/Projects/MedLands/SCOTTISH%20NOBILITY.htm#ThorfinnIId...

HALFDAN Sigurdsson. Snorre names "Guthorm, the eldest, then Gunhild, the next Halfdan, Ingerid and Harald" as the children of Sigurd & his wife[295]. Morkinskinna names (in order) “Gudrødr…Hálfdan…Ingibjorg…Gunnhildr, Haraldr” as the children of “Sigurdr sýr” and his wife “Ásta daughter of Gudbrandr”[296]. m ---. The name of Halfdan's wife is not known. Halfdan & his wife had one child:
(a) THORBERG [Bergliot] Halfdansdatter ([1018/20-). http://fmg.ac/Projects/MedLands/NORWAY.htm#ThorbergHalfdansdMFinArn...

cf https://www.geni.com/discussions/251927?msg=1573274