I have been searching high and low for Swedish and Danish archaeological armour finds from the 1100-1200's, but I can't find any. There are quite a few from the Viking age, but so far, I have found none at all from this particular era. All of the Norwegian finds are catalogued online, so those were fairly easy to browse (albeit to no avail), but I haven't found any similar resources for the neighbouring countries. This begs the question, has there been found much at all? Does anyone know of any finds from that era at all? Any help would be greatly appreciated.
This is a bit outside of my own field, so I don't have any ready resources for you, but if you can navigate in Scandinavian languages:
I'd also recommend checking out the resources of the Swedish Royal Armory. The Nationalmuseet also has a lot of resources, but almost everything that's useful is in Danish.
And if you're willing to go a bit later, the Battle of Visby on Gotland (1361) produced some amazing archaeological finds. The dead were left in the sun until they bloated, so they were all buried with their armor on. It must have been hell on earth at the time, but it's left a rich archaeological record showing the armor people wore and what it did or did not protect them against.