MOSCOW, RUSSIA - OCTOBER 6, 2016: Zelfira Tregulova (L), General Director of Moscow's State Tretyakov Gallery, Russia's President Vladimir Putin (C front), and Prince Albert II of Monaco (2nd R front) attend the opening of  exhibition titled "The Romanovs and the Grimaldi. Three Centuries of History (XVII-XIX)" and featuring old documents, paintings and furnishing from the archives of both royal dynasties. Alexei Nikolsky/Russian Presidential Press and Information Office/TASS (Photo by Alexei Nikolsky\TASS via Getty Images)