Where fontanges where widely worn in Russia at the beginning of the 18th century? I seen two portraits from the early 18th century Russia that show a laday wearing them.
I would not say “widely worn”, since common Russian people would wear their traditional clothes. Let’s remember that it was not until Peter the Great that Russian court and aristocracy would start to become more “European” in their fashion and style, taking inspiration from his travels through Europe. Let’s also remember that Peter visited Versailles in 1717, and that visit was a great source of inspiration for Saint Petersburg and its palaces, and founded the strong Franco-Russian friendship that lasted several centuries, and the strong French influence in Russian court style and fashion.
“Louis XV visiting Peter the Great, May 10th, 1717″, 1838-40, Louise Marie-Jeanne Hersent-Mauduit, Palace of Versailles.
So, it’s logical to see fontanges worn in Russian aristocracy portraits from the early 18th century, and we could say that they were worn by aristocracy in Russia, but I found not sources nor several portraits to be able to say that they were widely worn.