After painting had attained so high a degree of excellence in Siena, it was liable to decline, both from the usual lot of the most auspicious eras, to which an age of servile imitation, and of hurried execution, generally succeeds, and also from the terrible plague which, in 1348, desolated Italy and Europe; sweeping off distinguished masters and pupils in every school. Siena, however, did not lose her Lorenzetti, who constituted her ornament for several years; but if her population at one time equalled 75,000, it was afterwards greatly diminished. She could, however, still vie in the number of her artists with Florence itself. This clearly appears from _The Statutes of the Painters of Siena_,[268] published by P. della Valle, in his first volume, letter sixteen. They are drawn up with the characteristic simplicity, clearness, and precision of the thirteenth century; and are a very admirable body of regulations for the due propriety and direction of artists, and for the honour of the art. We can discern that this society consisted of cultivated and well educated persons; and it does not excite astonishment to find that, democratic in government as Siena then was, the highest magistrates of the republic were sometimes elected from among the professors of the art. They formed a body-corporate; not merely a fraternity, nor an academy of design; and received their charter, not from the bishop but from the city, or the republic in 1355. Some have conjectured that those statutes are as old as the preceding century; and that they were translated into Italian from the Latin about 1291: for Tizio informs us that, in this year, "Statuta maternâ linguâ edita sunt ad ambiguitates tollendas." But Tizio must have meant the statutes concerning wool, and others then existing; and those of the artists may have been framed at a subsequent period. Indeed, the manner in which they are drawn up, without a reference to preceding ordinances, indicates a first edition. If there were statutes published in the vulgar tongue in 1291, why was the sanction of the law deferred for 66 years? or why are the new not distinguished from the old, as is usual in similar codes?