In 1389, the clockmaker Jean Jouvence made one for the Castle of Montargis. Those of Sens and of Auxerre, as well as that of Lund in Sweden, date from the same period. In the last, every hour two cavaliers met and gave each other as many blows as the hours to be struck: then a door opened, and the Virgin Mary appeared sitting on a throne, with the Infant Jesus in her arms, receiving the visit of the Magi followed by their retinue; the Magi prostrating themselves and tendering their presents. During the ceremony two trumpets sounded: then all vanished, to re-appear the following hour. [Illustration: Fig. 146.--Clock with Wheels and Weights. Fifteenth Century. (Cabinet of Antiquities, Bibl. Imp., Paris.)] Until the end of the thirteenth century, clocks were destined exclusively [Illustration: Fig. 147.--A portable Clock of the time of the Valois.] to public buildings; or they at least affected, if we may say so, a monumental character which precluded their admission into private houses. The first clocks with weights and the flywheel made for private use appeared in France, in Italy, and in Germany, about the commencement of the fourteenth century; but naturally they were at first so costly that only nobles and wealthy persons could obtain them. But an impulse was given which led to the manufacture of these objects more economically. In fact, it was not long before portable clocks were seen in the most unpretentious abodes. This of course did not prevent the production of expensive examples, either as regards ornamentation or carving, or in placing the clock on costly pedestals or cases, within which were suspended the weights (Fig. 146). The fifteenth century has distinctly left its mark on the progress of horology. In 1401 the Cathedral of Seville was enriched with a magnificent clock which struck the hours. In 1404, Lazare, a Servian by birth, constructed a similar one for Moscow. That of Lubeck, which was embellished with the figures of the twelve Apostles, dates from 1405. It is proper to notice also the famous clock which Jean-Galeas Visconti had made for Pavia; and more especially that of St. Marc of Venice, which was not executed until 1495. The spiral spring was invented in the time of Charles VII.: a band of very fine steel, rolled up into a small drum or barrel, produced, in unrolling, the effect of the weights on the primitive movements. To the possibility of enclosing that moving power in a confined space is due the facility of manufacturing very small clocks. In fact, one finds in certain collections, clocks of the time of Louis XI., remarkable not only for the artistic richness of their decoration, but still more so for the small space they occupy, although they are generally of very complicated mechanism; some marking the date of the month, striking the hour, and serving also as alarm-clocks.