In 1370 their camp fires were again seen outside Paris: but Marcel's wall had now been completed. Charles refused battle and allowed them to ravage the suburbs with impunity. Before the army left, an English knight swore he would joust at the gates of the city, and spurred lance in hand against them. As he turned to ride back, a big butcher lifted his pole-axe, smote the knight on the neck and felled him; four others battered him to death, "their blows," says Froissart, "falling on his armour like strokes on an anvil." By wise council rather than by war Charles won back much of his dismembered country. He was a great builder and patron of the arts. The Louvre, being now enclosed within the new wall and no longer part of the defences of Paris, was handed over to Raymond of the Temple, Charles' "beloved mason," to transform into a sumptuous palace with apartments for himself and his queen, the princes of the blood and the officers of the royal household. The rooms were decorated with sculpture by Jean de St. Romain, _tailleur d'ymages_ and other carvers in stone, and with paintings, by Jean d'Orleans. Each suite was furnished with a private chapel, those of the king and queen being carved with much "art and patience." A gallery was built for the minstrels and players of instruments. A great garden was planted towards the Rue St. Honore on the north and the old wall of Philip Augustus on the east, in which were an "Hotel des Lions," or collection of wild beasts, and a tennis court, where the king and princes played. The palace accounts still exist, with details of payments for "wine for the stone-cutters which the king our lord gave them when he came to view the works." Jean Callow and Geoffrey le Febre were paid for planting squares of strawberries, hyssop, sage, lavender, balsam, violets, and for making paths, weeding and carrying away stones and filth; others were paid for planting bulbs of lilies, double red roses and other good herbs. Twenty francs were paid to Gobin d'Ays, "who guards our nightingales of our chastel of the Louvre." The first royal library was founded by Charles, and Peter the Cage-maker was employed to protect the library windows of stained glass from birds--it overlooked the falconry--and other beasts, by trellises of wire. In order that scholars might work there at all hours, thirty small chandeliers were provided and a silver lamp was suspended from the vaulting. Solemn masters at _grants gages_ were employed to translate the most notable books[87] from Latin into French; scribes and bookbinders of the university were exempted from the watch. An interesting payment of six francs in gold, made to Jacqueline, widow of a mason "because she is poor and helpless and her husband met his death in working for the king at the Louvre," demonstrates that royal custom had anticipated modern legislation.