When Louis IX., in 1242, at Taillebourg and at Saintes, had defeated the great vassals who had rebelled against him, he hastened to regulate the taxes by means of a special code which bore the name of the _Établissements_. The taxes thus imposed fell upon the whole population, and even lands belonging to the Church, houses which the nobles did not themselves occupy, rural properties and leased holdings, were all subjected to them. There were, however, two different kinds of rates, one called the _occupation_ rate, and the other the rate of _exploitation_; and they were both collected according to a register, kept in the most regular and systematic manner possible. Ancient custom had maintained a tax exceptionally in the following cases: when a noble dubbed his son a knight, or gave his daughter in marriage, when he had to pay a ransom, and when he set out on a campaign against the enemies of the Church, or for the defence of the country. These taxes were called _l'aide aux quatre cas_. At this period despotism too often overruled custom, and the good King Louis IX., by granting legal power to custom, tried to bring it back to the true principles of justice and humanity. He was, however, none the less jealous of his own personal privileges, especially as regarded coining (Figs. 263 to 270). He insisted that coining should be exclusively carried on in his palace, as in the times of the Carlovingian kings, and he required every coin to be made of a definite standard of weight, which he himself fixed. In this way he secured the exclusive control over the mint. For the various localities, towns, or counties directly under the crown, Louis IX. settled the mode of levying taxes. Men of integrity were elected by the vote of the General Assembly, consisting of the three orders--namely, of the nobility, the clergy, and the _tiers état_--to assess the taxation of each individual; and these assessors themselves were taxed by four of their own number. The custom of levying proprietary subsidies in each small feudal jurisdiction could not be abolished, notwithstanding the King's desire to do so, owing to the power still held by the nobles. Nobles were forbidden to levy a rate under any consideration, without previously holding a meeting of the vassals and their tenants. The tolls on roads, bridges (Fig. 271), fairs, and markets, and the harbour dues were kept up, notwithstanding their obstruction to commerce, with the exception that free passage was given to corn passing from one province to another. The exemptions from taxes which had been dearly bought were removed; and the nobles were bound not to divert the revenue received from tolls for any purposes other than those for which they were legitimately intended. The nobles were also required to guard the roads "from sunrise to sunset," and they were made responsible for robberies committed upon travellers within their domains.