Originally posted by Norgesvenn
Well, there was no Swedish kingdom in 1066, so why there's a king of Sweden is strange...
Oh yes there was, only that it didn't cover nearly as much as the later Sweden, only Götaland and the original Swedish kingdom. Sviariki/Sviaveldi/Svearike, whatever you call it, is translated into "Sweden", it's modern day historians who separate from different versions of the same name during different times

. The question that there was no Sweden before all areas were united is quite silly IMHO, as we all know the kingdom around Uppsala was named Sweden - or Svearike, which as we all also know is just an older version of Sverige - and that this name later lived on to apply to the whole united kingdom. AFAIK there was no common name of all of what now is Sweden, as the case was with Norway (if it was, it would be Sviþioþ I guess, but I doubt Götaland was included in that term).
However it is an open question whether Halsten Stenkilsson was king or if Stenkil of Västergötland Ragnvaldsson was still king.
Well, the history of Sweden around the coming of Christianity is uncertain.
About Halsten. Yes, there is an uncertainity if he had been king. After Stenkil's death in 1066, the [what is the correct transation of gaut/göte!? I've seen everything from Goth to Geat - I always use Goth though, as that is what contemporary sources use] people of Västergötland supported Erik Stenkilsson as the new king and the Swedes Erik the Heathen Amundsson. These two killed themselves in a battle in 1067, and Halsten Stenkilsson was elected king instead. This according to Adam of Bremen (dead 1076).
It is also uncertain whether Halsten was king on his own, or if Inge Stenkilsson was co-regent, in which case he would be better to use, being a christian and the one with greater longevity.
Actually both of them were Christians. The Swedes drove him away already in 1070, but he returned as a coregent to Inge nine years later. He is mentioned as "king of the Wisigoths" in 1081.
But at least Västergötland and Ragnvaldsson, and his mother of Svealand (or rather Uppsala, actually) I'm rather impressed that you found a first name for his mother, who is usually just called Inge-mother to show her greatest claim for fame
It's a temporary name, as I have understood, as neither they could find her name. As said, she is usually called Ingamoder or simply Emundsdottir (Mother of Inge, daughter of Emund). The only name I've seen on her is Maria - a Christian name, which is fitting well as Halsten and his brothers were raised as true Christians.
Above spellings and such. His father was R
agnvaldsson, not Rognvaldsson. And then is the issue whether dottir or dotter should be used. In Modern Swedish it's dotter, in old Swedish it's dottir. Considering the word changed from dottir to dotter during the CK time period I don't really care
Good that you changed to Västergötland.

I don't really mind how you spell it, as it has been different through the ages (Gautland vestra, Vestergautland, Vestergötland, Västergötland), just as long you don't spell it "-getland", which means Goat-land, as in that animal.
Edit: here's a nice little tree, based on the sagas, Saxo, Adam, Västgötalagen:
Note that Stenkil's wife is "En dotter" which isn't a name, but simply means "A daughter" and is the mysterious Emundsdottir.
Tree, respectfully stolen from
this site.