However, the amount of sitters, co-handlers, and volunteers is not capped. Among his many regal sitters was also Queen Victoria. Some of his other sitters were photographed wearing masks. He confidently set high prices and turned down unsatisfactory sitters. A support group for the "sitters", "Sitting with Marina", was established on Facebook. Holbein's fame owes something to that of his sitters. Identification of the sitters was made in 1912 by Julius Meier-Graefe.