In 1866 war broke out between Austria and Prussia in what became known as the Seven Weeks War. Because of her strong links with Austria, Bavaria was drawn into the conflict on the Austrian side. In a secret treaty King Ludwig II placed the Bavarian army at the disposal of the Prussian General Staff.
Ludwig was to marry in August of 1867 but he was unhappy with the relationship so changed the date to October 12th, which incidentally was the date that both his grandfather and father married. Ludwig was very unsettled at the prospect of marrying and as such voiced his apprehension to his Court Secretary, confessing that he would rather drown himself than marry. He wrote to Wagner "Oh, if only I could be carried on a magic carpet to you . . . at dear, peaceful Tribschen (Lucerne, Switzerland.) - Even for an hour or two.
In November, King Ludwig II broke of his engagement fleeing to his beloved Alps. He wrote to Wagner from Hohenschwangau on 21 November, 1867; "I write these lines sitting in my cosy gothic bow-window, by the light of my lonely lamp, while outside the blizzard rages. It is so peaceful here; this silence is stimulating, whereas in the clamour of the world I feel absolutely miserable. "Thank God I am alone at last. My mother is far away, as is my former bride, who would have made me unspeakably unhappy. Before me stands a bust of the one, true Friend whom I shall love until death. . . If only I had the opportunity to die for you."