This is the 16624th most frequent Polish word.
wrocławskich
The word "wrocławskich" means "of Wrocław" or "related to Wrocław" in English.
The word 'wrocławskich' functions as an adjective describing the restaurants, implying they are located in or associated with Wrocław.
Odwiedziliśmy kilka wrocławskich restauracji.
We visited a few restaurants in Wrocław.
Here, 'wrocławskich' modifies 'mostów' (bridges), indicating their geographical or cultural relation to Wrocław.
Podziwiam architekturę wrocławskich mostów.
I admire the architecture of the bridges in Wrocław.
In this context, 'wrocławskich' characterizes the legends as pertaining to the city of Wrocław.