It's correct in English. [1] The family of Thomas Mann were representatives of German bourgeoisie. From [2] (machine translated): "Thomas Mann and Heinrich Mann, as well as members of the following generation, became writers; in their numerous, often autobiographically influenced literary works, they explored themes such as the history of the German bourgeoisie and educated middle class, as well as its decadence. Through this, the family itself came to be seen by the public as a symbol and late representative of that very social stratum."
https://en.wikipedia.org/wiki/Burgher_(social_class) [1]
https://de.wikipedia.org/wiki/Mann_(Familie) [2]
https://en.wikipedia.org/wiki/Bildungsb%C3%BCrgertum
https://de.wikipedia.org/wiki/B%C3%BCrgertum