Konstantin Pavlovich - 27 April 1779 – 27 June 1831) was a grand duke of Russia and the second son of Emperor Paul I and Sophie Dorothea of Württemberg. He was the Tsesarevich of Russia throughout the reign of More
Русский: Художник-авангардист Иван Васильевич Клюн (Клюнков). Автопортрет. Public domain photograph of 19th-century Russian painting, free to use, no copyright restrictions image - Picryl description
Эрих Фёдорович Голлербах. Современная обложка, 1927