Kongedragter is an online exhibition that features one outfit for each Danish king or queen, from Frederick II (1559-1588) to Margarethe II (1972-present). Unfortunately, Margarethe’s is the only female outfit included, but still… if you’re into men’s costumes, there’s some really nice stuff in there!
If you’re like me and don’t speak Danish, click on the photo of a king/queen from the top right thumbnails. Wait a second and the clock will turn into an image of an ensemble, which you can then zoom (magnifying glass), rotate! (loop-y arrow), and get info about (“I”).