Urszula Meyerin

Urszula Meyerin also Meierin (1570–1635) was mistress to King Sigismund III of Poland and a politically influential woman. Her real name might have been Gienger (or Gienger von Grünbüchl), but it is still a matter of dispute among historians; she signed all her letters as Ursula Meyerin. In German, her last name means chamberlain, administrator, manager.