to the retirement of his wife into France, he had virtually relinquished all right to interfere in her conduct." Following Louis XIV's rebuff, Cosimo fell grievously ill, only to be roused by Francesco Redi, his physician, who helped him reform his ways so illness would never strike him again. It was after this event that Cosimo finally stopped bothering with the Grand Duchess's life. In 1682 Cosimo III appointed his brother, Francesco Maria de' Medici, Governor of Siena. The Holy Roman Emperor requested Cosimo's participation in the Great Turkish War. At first, he resisted, but then sent a consignment of munitions to Trieste, and offered to join the Holy League. They defeated the Turks at the Battle of Vienna in September 1683. To Cosimo's dismay, "many scandals and disorders continued to occur in the matter of carnal intercourse between Jews and Christian women, and especially putting their children out to be suckled by Christian nurses." The Grand Duke, wishing to supplement the "foe of heretics" persona he acquired after Vienna, outlawed the practice of Jews using Christian wet nurses and declared that if a Christian father wished to have his half-Jewish child suckled by a Christian nurse he must first apply to the government for a permit in writing. In addition, public executions increased to six per day. Gilbert Burnet, Bishop of Salisbury and a famed memorialist, visited this Florence in November 1685, of which he wrote that "[Florence] is much sunk from what it was, for they do not reckon that there are fifty thousand souls in it; the other states, that were once great republic, such as Siena and Pisa, while they retained their liberty, are now shrunk almost into nothing..." Marriage of the Grand Prince Ferdinando Cosimo went about arranging a marriage for his elder son, Ferdinando, in 1686. He ushered him into the marriage as the other Tuscan princes, Francesco Maria de' Medici and Gian Gastone de' Medici, were sickly and unlikely to produce children. The main suitors were: Violante of Bavaria, a Bavarian princess, Isabel Luisa of Portugal (the heiress-apparent of Portugal), and the Elector Palatine's daughters. Negotiations with the Portuguese were intense, but stalled over certain clauses: Ferdinando and Isabel Luisa would live in Lisbon, Ferdinando would renounce his right to the Tuscan throne unless the Infanta's father, King Peter II, remarried and had male issue, and if Isabel Luisa became Queen of Portugal,