Well, intellectuals, the guts?
Here's another hint: the name of the most famous husband, which means the original language rights in defining the art (it's just on your part), passed in the Russian language, but refers to it more common, but less prestigious professions: D
Have you stayed only one day to find answers and receive a gift of beautifully published catalog with lots of color illustrations, with an outstanding art historians and, most importantly, with the inscription The compiler of this story!
Hurry up, tomorrow will be too late: at 12.00 Moscow time, I'll give the answers, and magnificent book will stay with me!