This is the 7747th most frequent Spanish word.
louis
The word "louis" is not Spanish; it is a French name.
Here, 'Louis' is used as a proper noun indicating the name of a person.
¿Conoces a Louis que vive en la esquina?
Do you know Louis who lives on the corner?
In this sentence, 'Louis' is part of the brand name 'Louis Vuitton', referring to a luxury fashion brand.
El bolso Louis Vuitton es muy caro.
The Louis Vuitton bag is very expensive.
Here, 'Louis' designates a historical figure as part of his title, referring specifically to a French monarch.