The tzar established his great ship-yard at Voronise, on the Don, from which place he could float his ships down to the Sea of Azof, hoping to establish there a fleet which would soon give him the command of the Black Sea. In March, 1699, he had thirty-six ships launched and rigged, carrying each from thirty to sixty guns; and there were then twenty more ships on the stocks. There were, also, either finished or in process of construction, eighteen large galleys, one hundred smaller brigantines, seven bomb ships and four fire ships. At the same time Peter was directing his attention to the Volga and the Caspian, and still more vigorously to the Baltic, upon whose shores he had succeeded in obtaining a foothold. And now the kingdom of Sweden came, with a rush, into the political arena. Poland had ceded to Sweden nearly the whole of Livonia. The Livonians were very much dissatisfied with the administration of the government under Charles XI., and sent a deputation to Stockholm to present respectful remonstrances. The indignant king consigned all of the deputation, consisting of eight gentlemen, to prison, and condemned the leader, John Patgul, to an ignominious death. Patgul escaped from prison, and hastening to Poland, urged the new sovereign, Augustus, to reconquer the province of Livonia, which Poland had lost, assuring him the Livonians would aid with all their energies to throw off the Swedish yoke. Patgul hastened from Poland to Moscow, and urged Peter to unite with Augustus, in a war against Sweden, assuring him that thus he could easily regain the provinces of Ingria and Carelia, which Sweden had wrested from his ancestors. Denmark also, under its new sovereign, Frederic IV., was induced to enter into the alliance with Russia and Poland against Sweden. Just at that time, Charles XI. died, and his son, Charles XII., a young man of eighteen, ascended the throne. The youth and inexperience of the new monarch encouraged the allies in the hope that they might make an easy conquest.