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. Anna Jagiellon: Anna Jagiellon (Polish: "Anna Jagiellonka" , Lithuanian: "Ona Jogailaitė" ; 18 October 1523 – 12 November 1596) was Queen of Poland and Grand Duchess of Lithuania in her own right from 1575 to 1586.
Martin Kober