The signature of Alexander Ypsilantis, leader of the Greek Revolt against the Ottoman Empire in 1821. From a letter kept in the archives of the Historical and Ethnological Society of Greece, National Historical Museum, Athens, Greece. It is worth noting that Ypsilantis had lost his right arm in the Battle of Dresden (1813) and he had to learn how to right with his left one.
https://karavaki.wordpress.com/2017/03/24/ypsilantis-revolution-phoenix/
Alexander Ypsilantis (1792-1828) // Αλέξανδρος Υψηλάντης (1792-1828)