Jan Matejko
Jan Alojzy Matejko was a Polish painter, a leading 19th-century exponent of history painting, known for depicting nodal events from Polish history. His works include large scale oil paintings such as Rejtan (1866), the Union of Lublin (1869), the Astronomer Copernicus, or Conversations with God (1873), or the Battle of Grunwald (1878). He was the author of numerous portraits, a gallery of Polish monarchs in book form, and murals in St. Mary's Basilica, Kraków. He is considered by many as the most celebrated Polish painter, and sometimes as the "national painter" of Poland. Matejko was among the notable people to receive an unsolicited letter from the German philosopher, Friedrich Nietzsche, as the latter tipped, in January 1889, into his psychotic breakdown while in Turin.