This is the 12829th most frequent Russian word.
купаловской
"Купаловской" relates to or is associated with Kupala, often referring to the poet Yanka Kupala or the Kupala Night festival.
In this sentence, 'Купаловской' is used in the form of a descriptive adjective relating to the proper noun 'Купаловская площадь' (Kupala Square). This showcases its use in a locational context.
Я люблю гулять по Купаловской площади.
I love walking in Kupala Square.
Here, 'Купаловской' describes the gallery's name, indicating its association or dedication to a figure or a concept related to Kupala, in the context of location or ownership.
Я видел фото, снятое в Купаловской галерее.
I saw a photo taken in the Kupala Gallery.
In this instance, 'Купаловской' functions as an attributive adjective, associating the estate with the Kupala name.