In colonial affairs the Assembly acted with the same imprudence. Eager to set an example of suppressing slavery, it took measures which prepared a terrible negro insurrection in St Domingo. With regard to foreign relations the Assembly showed itself well-meaning but indiscreet. It protested in good faith that it desired no conquests and aimed only at peace. Yet it laid down maxims which involved the utmost danger of war. It held that no treaty could be binding without the national consent. As this consent had not been given to any existing treaty, they were all liable to be revised by the French government without consulting the other parties. Thus the Assembly treated the Family Compact as null and void. Similarly, when it abolished feudal tenures in France, it ignored the fact that the rights of certain German princes over lands in Alsace were guaranteed by the treaties of Westphalia. It offered them compensation in money, and when this was declined, took no heed of their protests. Again, in the papal territory of Avignon a large number of the inhabitants declared for union with France. The Assembly could hardly be restrained by Mirabeau from acting upon their vote and annexing Avignon. Some time after his death it was annexed. The other states of Europe did not admit the doctrines of the Assembly, but peace was not broken. Foreign statesmen who flattered themselves that France was sinking into anarchy and therefore into decay were content to follow their respective ambitions without the dread of French interference. Attempt of Louis XVI. to escape from Paris.