A determined effort to bring the independent town of Mulhouse under Burgundian sway was another act of 1473, fanning opposition to a white heat that forged organised resistance to any extension of Burgundian authority. For three years, Hagenbach had endeavoured to convince the burghers of that imperial city that they would be wise to accept the duke's protection and have their debts paid. The latter were, indeed, oppressive, but there was fear lest "protection" might be more so, and conference after conference failed to produce the acquiescence desired by Hagenbach. In 1473, that zealous servant of Burgundy declared that if the burghers persisted in their refusal he would resort to force. Their reply was that Mulhouse could not take such an important step without consulting her friends, the Swiss. "Are the cantons going to help you pay your debts?" was the sneering comment of Hagenbach. "Mulhouse is a bad weed in a rose garden, a plant that must be extirpated. Its submission would make a charming pleasure ground out of the Sundgau, Alsace, and Breisgau. The duke knew no city which he would prefer to Mulhouse for a sojourn," were his further statements.[10] Two days were given to the town council for an answer. Hagenbach remarked that it was useless to think that time could be gained until the mortgaged territories should return to Austria. "Far from planning redemption, Duke Sigismund is now preparing to cede to _Charles le téméraire_ as much again of his domain and vassals." Still Mulhouse was not convinced that the only course open to her was to let Charles pay her debts and receive her homage. No answer was forthcoming in the two days, but ready scribes had prepared many copies of Hagenbach's letter, which were sent to all who might be interested in checking these proposals of Burgundy. On February 24, 1473, a Swiss diet met at Lausanne and there the matter was weighed. Hagenbach's letter was shown to those who had not seen it, and methods of rescuing Mulhouse from her dilemma were carefully considered. Years ago a union had existed between the forest cantons and the Alsatian cities. There were propositions to renew this alliance so as to present a strong front to their Burgundian neighbour. The cantons had enough to do with their own affairs, but the result of the discussion was that, on March 14th, a ten-year Alsatian confederation was formed in imitation of the Swiss.