This is the 4965th most frequent Swedish word.
brithéns
The word "brithéns" does not appear to be a standard Swedish word. It might be a proper name or misspelling.
The usage of 'Brithéns' here shows that the exhibition is organized or owned by Brithén.
Vi ska besöka Brithéns utställning imorgon.
We are going to visit Brithén's exhibition tomorrow.
Here, 'Brithéns' indicates possession, showing that the book belongs to Brithén.
Brithéns bok handlar om historia.
Brithén's book is about history.
In this sentence, 'Brithéns' is used to denote ownership of the poster, as it belongs to Brithén.