This is the 3125th most frequent French word.
posséder
To own, possess, or have control over.
In this sentence, 'posséder' is used to indicate ownership or possession of a tangible object.
Je possède une voiture ancienne.
I own an antique car.
Here, 'posséder' is used figuratively to indicate having a quality or skill.
Cet artiste possède un talent exceptionnel.
This artist possesses an exceptional talent.
This sentence uses 'posséder' to imply that the castle holds or incorporates an attribute, in this case, its history.