Christian August Heinrich Kurt Graf[a] von Haugwitz (11 June 1752 – 1832) was a German statesman, best known for serving as Foreign Minister of Prussia during the Napoleonic Wars.
No guarantee of their maintenance had been inserted in the Basel treaty; but Haugwitz and the king hoped to preserve them by establishing the armed neutrality of northern Germany and securing its recognition by the French Republic.
Haugwitz was now once more appointed foreign minister, as Hardenberg's colleague, and it was he who was charged to carry to Napoleon the Prussian ultimatum which was the outcome of the visit of the Tsar Alexander I to Berlin in November.
But in this crisis his courage failed him; his nature was one that ever let "I dare not" wait upon "I will"; he delayed his journey pending some turn in events and to give time for the mobilization of the Duke of Brunswick's army; he was frightened by reports of separate negotiations between Austria and Napoleon, not realizing that a bold declaration by Prussia would nip them in the bud.
On 15 December 1805 instead of delivering an ultimatum, Haugwitz signed a treaty of alliance at Schönbrunn which gave Hanover to Prussia in return for Ansbach, Cleves and Neuenburg.
He was received with a storm of abuse by Napoleon, who insisted on tearing up the treaty and drawing up a fresh one, which doubled the amount of territory to be ceded by Prussia and forced her to a breach with Great Britain by binding her to close the Hanoverian ports to British commerce.