"friherre" (tr. baron) is high is high nobility as far as I understand. https://en.wikipedia.org/wiki/Swedish_nobility#Organization
I don't know how to find out if a profile is international nobility. I can not find anything on wikipedia.
But another problem is with profiles that are mentioned in a source(probably because of some notability) is that the source sometimes not mention what is the most important reason or reasons that they are listed. They list what they did and their merits and a biography(hopefully separate). But most of the time it's not a problem, but when it is it is.