This is the 2954th most frequent Swedish word.
fredriksson
"Fredriksson" is a Swedish surname, meaning "son of Fredrik."
In this sentence, 'Fredriksson' is again a proper noun used in combination with a courtesy title 'Herr' to refer to someone's surname, indicating respect.
Herr Fredriksson visade oss runt i staden.
Mr. Fredriksson showed us around the town.
'Fredriksson' here denotes an author whose works are being referenced, functioning as a proper noun as part of possessive attribution.
Jag läste en bok av Fredriksson som jag verkligen gillade.
I read a book by Fredriksson that I really liked.
Here, 'Fredriksson' is used as a proper noun, referring to the name of a specific individual.