Who was the court painter of the Queen that was also the Grand Duchess of Lithuania from 1575-1586?
Martin Kober Martin Kober (also "Chober, Cober, Coeber, Khober, Koeber, Koebner", Polish: "Marcin Kober" ) (ca. 1550 – before 1598) was a portrait painter and court painter to different Central European monarchs - King Stephen Báthory, Rudolf II, Holy Roman Emperor, Queen Anna Jagiellon and King Sigismund III Vasa, active mainly in the Polish–Lithuanian Commonwealth.
Maria Christina of Habsburg Maria Christierna of Austria (10 November 1574 – 6 April 1621), was a Princess of Transylvania by marriage to Sigismund Báthory, and for a period in 1598 elected sovereign Princess regnant of Transylvania.