by Henry IV, who moved on Paris, but retreated before Mayenne's forces. In 1590 Mayenne received additions to his army from the Spanish Netherlands, and took the field again, only to suffer complete defeat at Ivry (14 March 1590). He then escaped to Mantes and in September collected a fresh army at Meaux, and with the assistance of Alexander Farnese, Duke of Parma, sent by Philip II of Spain, raised the siege of Paris, which was about to surrender to Henry IV. Mayenne feared with reason the designs of Philip II, and his difficulties were increased by the death of the Cardinal, the "king of the league." Peacemaker The extreme section of the party, represented by the radical "Paris Sixteen", urged him to proceed to the election of a Catholic king and to accept the help and the claims of their Spanish Habsburg allies. Mayenne lacked the popular gifts of his brother, the Duke of Guise, and had no sympathy with the urban demagogues, inclining to the moderate side of his party, which began to urge reconciliation with Henry IV. He maintained the ancient forms of the constitution against the revolutionary policy of the Sixteen, who during his absence from Paris took the law into their own hands and in November 1591 executed one of the leaders of the more moderate party, Barnabé Brisson, president of the parlement. He returned to Paris and executed four of the chief malcontents. The power of the Sixteen diminished from that time, and with it the strength of the League. Mayenne entered into negotiations with Henri IV while he was still appearing to consider with Philip II the succession to the French crown of the Infanta Isabella Clara Eugenia of Spain, daughter of Elizabeth of Valois and granddaughter of Henri II. He demanded that Henri IV complete his conversion to Catholicism before he was recognized by the adherents of the League. He also desired the continuation to himself of the high offices which had accumulated in his family and the reservation of their provinces to his relatives among the Leaguers. In 1593 he summoned the States-General to Paris and placed before them the claims of the Infanta, but they protested against foreign intervention. Mayenne signed a truce at La Villette on 31 July 1593. The internal dissensions of the league continued to increase, and the principal chiefs submitted. In 1595, Mayenne and Juan Fernández