Santa Chiara (14th century) is interesting for a fresco ascribed to Giotto (at one time there were many more), and monuments to Robert the Wise, his queen Mary of Valois and his daughter Mary, empress of Constantinople.
His mother, Marthe Marguerite le Valois de Vilette de Murray, comtesse de Caylus (1673-1729), was a cousin of Mme de Maintenon, who brought her up like her own daughter.
The pope's attempt to unite the grandi having failed, he summoned Charles of Valois to come to his assistance, promising him the imperial crown; in 1301 Charles entered Italy, and was created by the pope paciaro or peacemaker of Tuscany, with instructions to crush the Bianchi and the popolo and exalt the Neri.
Subsequently he joined Henry of Navarre, whom he succeeded in withdrawing from the corrupting influence of the house of Valois (1576), and to whom he rendered valuable service, both as a soldier and as a counsellor, in the wars that issued in his elevation to the throne as Henry IV.
There may be noted Durand's Marguerite de Valois et la tour de Francois Ier (1848); La Ferriere's Marguerite d'Angouleme (1891); Lotheissen's Konigin Margareta von Navarra (1885); Miss Edith Sichel's Women and Men of the French Renaissance (1901), and P. Courtault's Marguerite de Navarre (1904).
That was the origin of the expeditions into Italy on which the house of Valois was two centuries later to squander the resources of France unavailingly, compromising beyond the Alps its interests in the Low Countries and upon the Rhine.
Marguerite exhibited during the rest of her life, which was not a short one, the strange Valois mixture of licentiousness, pious exercises, and the cultivation of art and letters, and died in Paris on the 27th of March 1615.
Charles of Valois at once entered into possession of the countship of Anjou, to which Philip IV.
He allied himself with Ferdinand and Isabella of Spain and with Maximilian of Austria, who was ruling the Netherlands in behalf of his young son, Philip, the heir of the Burgundian inheritance, for the purpose of preventing France from annexing Brittany, the last great fief of the crown which had not yet been absorbed into the Valois royal domain.
This house merged in that of Valois in 1383, by the marriage of Margaret, daughter of Louis, count of Artois, with Philip the Bold, duke of Burgundy.