This is the 3173rd most frequent Swedish word.
paulsson
"Paulsson" is a Swedish patronymic surname meaning "son of Paul."
Here, 'Paulsson' is used as a proper noun, specifically a surname, to discuss its commonality.
Paulsson är ett vanligt efternamn i Sverige.
Paulsson is a common surname in Sweden.
In this sentence, 'Paulsson' refers to an individual with that surname, used in a direct reference to their achievement.
Jag såg att Paulsson vann tävlingen igår.
I saw that Paulsson won the competition yesterday.
Here, 'Paulsson' represents a specific person who was identified by this surname in a historical context.