Maline Mickelsdotter Finne - Sources

Her husband Michael Van der Speet was obviously a Vallon. These Vallon families are studied in Sweden. You might find sources for Maline Mickelsdotter Finne (my 11th great grandmother) in these studies. http://forum.vallon.se/ind_forum.htm

My question is about the surname "Finne". Her sister Maren was married to Jørgen Pederssøn Finde (working as a writer at Akershus castle), but that does not explain why Maline here is named so.

Her husband is given as "no name van der speet".

And how does a woman based in Norway, with a husband with an unknown name but known surname become mother to a son born in Liege? This seems very strange and reeks of amateur genealogy.

There is a history behind the connection Liege and the Nordic areas from early 1600. I add a link if you do not know about that history. The Vallon people from central Europe, first of all, came to Sweden. However, some Vallons came to Norway and have descendants here today. https://www.familysearch.org/wiki/en/Vallons_in_Sweden
As mentioned, I do not understand how the surname Finne is related to @Maline Mickelsdotter Finne, it was her sister @Maren Michelsdtr. van Thien who married a man with such a name.

I know of Wallons and the connection to Liège, but this woman was born and died in Norway. Did she live in Belgium? How is her son born there? And how do we "know" the name of the mother and not the father?

At the beginning of the year, Maline and Maren were on two different web pages in Geni and in MyHeritage both were on the same web page but with each one Thora Hansdatter van Thien as mother.
Both Thora had similar information about the year of birth, the year of death and two poisons. In MyHeritage, Maline's grandfather was Hans Sæbjørnsen Hvam while he was the grandfather of Maren in Geni.

1 The birth years of Maren and Maline may not be correct.
2 Maren and Maline are half siblings.
3 Maren and Maline are siblings born one at the beginning of the year and the other at the end.
4 Maren and Maline are twins.
5 Maren and Maline are the same person

There are web pages that indicate that Maren and Maline have nearly ten siblings that I do not access nowadays.