As Prince-archbishop, Mark Sittich had no intention to be a puppet of Duke Maximilian of Bavaria: by refusing to enter the Catholic League,[2] he was able to keep the Archbishopric of Salzburg out of the Thirty Years' War.
[2] His relatives, the Counts of Hohenems, tolerated Lutheranism and sponsored the arts, but paying taxes to both warring entities failed to keep them out of the warfare, only prompting taxpayer unrest.
The archbishop also commissioned Santino Solari to build Hellbrunn Palace as his summer residence in the style of an ancient villa rustica, including extended gardens and its famous fountains.
Joined by the English envoy James Hay, they shared a festive meal and Ferdinand left Salzburg the next day with an archiepiscopal letter of credit for 50,000 guilders.
Later in September, while Markus Sittikus awaited the arrival of the newly crowned Holy Roman Emperor on his way back to Vienna, he fell seriously ill with fever and died within fourteen days on 9 October 1619.