Get the class to which a property belongs

I have extracted the classes, properties, and their attributes from a dll file using C# reflection. Now I need to use the attributes in other places of the application and I need to know the mother property and class every attribute. Is there some method or some way to go from property to class?

I have tried to use GetCustomAttributes(true), but it seems that this method is inheriting attributes of the base interface...

Any help please?