The death of the Queen Dowager Blanche, who had governed France wisely during her regency, recalled him in 1254, after an absence of six years. He still wore the cross upon his shoulder, as a token that his oath as a Crusader was not yet fulfilled; but he never once neglected the more pressing and necessary duties which devolved on him as a monarch. His immediate work was to supersede the arbitrary legislation which the nobles exercised in their manorial courts over their tenants. He accordingly introduced into general use the famous code of Roman laws known as the Pandects of Justinian, and constituted the chief civil lawyers, who had studied its contents and were best acquainted with its principles, into a Parliament, or Court of Justice. The nobles and the clergy were duly represented in this assembly; but its clerks, or lawyers, were especially favored by the king, who seconded their own efforts to absorb the business of the court as much as possible. Louis further mediated between the tyranny of the nobles and the weakness of their tenants, by encouraging the practice of appealing to the crown in case of injustice. This he even extended to ecclesiastical matters; a bold step for one so devoted to the Church. The prohibition of the barbarous custom of duelling to decide personal quarrels was another of his humane laws. These, and divers other ordinances, founded in a like spirit of equity, are known in a collected shape as the _Institutes of St. Louis_. His enactment touching appeals from the Church to the Crown, and the prohibition which he likewise issued against the levying of money in France for the use of the Pope without the king's license, are known as a _Pragmatic Sanction_--a term applied to any especially important national decree. Louis set the example of enforcing the laws personally, and none was fitter to administer them than he. Under an oak in the forest of Vincennes, near Paris, often sat the good king to hear appeals and petitions from his poor subjects. His social and foreign relations were as fully attended to as his political reforms. He first placed the French navy on a substantial footing. To him Paris owed a public library, a hospital for the blind, and the establishment of a body of police. Under his sanction, also, his confessor, Robert de Sorbon, founded the famous theological college called by his name. So scrupulously just and honorable was Louis, that he appointed a commission to ascertain what restitution of territory should be made to nations which had been mulcted by the conquests of his predecessors, and he thus more than once sacrificed extensive possessions for the sake of a principle. By a treaty in 1255, made with Henry III., Louis restored to the English crown the provinces of which Philip Augustus had deprived it, and obtained in return the surrender of Henry's rights in Normandy and other fiefs. The reputation which Louis thus acquired among his