Battleships conducting combat operations in rivers

How many battleships tried to go up rivers during wartime?

More than commonly remembered; Warspite and Schleswig-Holstein provide clear examples, though defining a river operation matters.

The question is narrowed to wartime combat rather than ordinary dockyard transit. HMS Warspite's final firing in anger on 1 November 1944 supported Allied operations connected with clearing the Scheldt. That episode places an old battleship's heavy guns alongside Canadian and other ground forces in a confined coastal approach. Schleswig-Holstein's operations near Danzig and movement associated with the Vistula provide another example, including engagement by Polish shore weapons during the opening campaign. The answer therefore depends on how broadly a river operation is defined, but it identifies two concrete cases rather than treating battleships as exclusively open-water ships.