Regarding Renaissance & Baroque Art of Central Europe
Münzen und Medaillen
Mints of the Habsburg realm find their modern iteration in Künker.de, a universe of original coins and commemorative medals from the German lands and beyond. Naturally, they specialize in early modern stuff.
2 a web resource documenting recent developments in Renaissance and Baroque art of Central Europe, esp. exhibition, catalogue, and book reviews, but also news, editorials, information, and other miscellanea.