After the expulsion of the Riformatori in March 1385, a new supreme magistracy was instituted to rule the Republic. It was composed of ten citizens--the "Signori Priori, Governatori della Città di Siena"--who held office for two months. Four of these priors were of the Nine, four of the Twelve, and two of the People. A new order--the _Monte del Popolo_--was formed to include those plebeians, or Popolani of the Greater Number, who had not shared in the government of the Riformatori; and it gradually rose in importance, reinforced in later years by families of nobles who became _popolani_ and by others of the lower classes who had come to Siena from elsewhere. A turbulent and unsettled period followed, of incessant plots against the new government and of disastrous wars. In November 1385, Siena joined in a league, offensive and defensive, with the Communes of Bologna, Florence, Pisa and Lucca, against the wandering companies of mercenaries. But presently that never-healed wound, the question of Montepulciano, opened again, and a prolonged war with Florence followed in consequence. Both Cortona and Montepulciano were lost to Siena. In 1389 the Sienese allied themselves for ten years with Giovanni Galeazzo Visconti, who had dethroned his uncle Bernabò and was now manifestly intending to conquer all northern and central Italy. A Sienese poet, Simone di Ser Dino Forestani ("il Saviozzo") hailed him as the coming deliverer of the Italian nation in a noted canzone, which Carducci has called the last cry of Ghibellinism. A number of the Malavolti and Tolomei, headed by Messer Orlando Malavolti, chose exile in the following years rather than see their country fall into servitude. Giovanni Galeazzo was created Duke of Milan by the Emperor Wenceslaus in 1395; and, when the end of the term of the alliance drew near, the Sienese found themselves so exhausted with war, famine and pestilence that in 1399 they formally surrendered the independence of their city, with its contado and district, to the Duke and his successors, swore obedience and fidelity to him in the persons of his ambassadors, and hailed their new yoke with wild festivities. The Duke died in 1402; he had just taken Bologna and intended, as soon as Florence fell into his hands, to be crowned King of Italy. His newly acquired dominions fell to pieces. In November 1403, the Salimbeni (who, in opposition to the Malavolti and Tolomei, had been among the foremost in introducing the ducal sovereignty into Siena) and the heads of the Dodicini, probably instigated by the Florentines, called the Sienese to arms to recover their liberty. The Noveschi and People opposed them. There was a struggle in the Campo, an attempt to capture the Palazzo; but Francesco Salimbeni was killed and the Dodicini expelled from the government. In the following year the liberation of Siena was peaceably effected. Peace was made with Florence in April, and, the ducal lieutenant having left