Museum Sammlung Schack in Munich

You're standing on Prinzregentenstraße in Munich, in front of the Schack-Galerie. Take a look at the façade of bright sandstone. Up top there's a portico with columns, and above it, in the triangular pediment, an imperial coat of arms and a dedication by Emperor Wilhelm II. A German emperor dedicating a museum in Bavaria? There's a story there.