Five months later, on his way back to Russia, Peter again passed through Berlin. King Frederick I had just died and the twenty-five-year-old Prince Royal now sat on the throne as King Frederick William I. "I have found the new King very pleasant," Peter wrote to Menshikov, "but cannot decide him on any action. As far as I can understand from two reasons: first, because he has no money, and second, because there are still here many dogs of Swedish heart. The King himself is unskilled in political matters and when he asks his Ministers for advice, they help the Swedes in every way. . . . The Court here is not so grand as it was before." As for joining an active alliance against Sweden, the new King of Prussia said that he needed at least a year to put his army and finances in order.
The lifetime of Peter the Great and the rise of Russia also saw the emergence of a new, highly disciplined military state in North Germany, the kingdom of Prussia. It sprang from the electorate of Brandenburg, whose ruling house, the House of Hohenzollern, had descended from the Teutonic Knights. Its capital, Berlin, was still only a town in Peter's day, with a population in 1700 of 25,000. Its people were Protestant, frugal and efficient, with a capacity for organization, a willingness to sacrifice and a belief that duty was the highest call. Other Germans—Rhinelanders, Bavarians, Hanoverians and Saxons—though of Brandenburgers as semi-feudal, less civilized and more aggressive than themselves.
The weakness of the state was geographical. A product of dynastic marriages and inheritances, it was scattered in unconnected fragments all across the Northern European plain. Its westernmost territory, the duchy of Cleves, lay on the Rhine near the point where the great river flows into Holland; its easternmost fief, the duchy of East Prussia, lay on the Neman, over 500 miles east of Cleves. The Treaty of Westphalia in 1648, which ended the Thirty Years' War, had left the state of Brandenburg with gloomy prospects. It was cut off from the sea. It lacked natural resources; because of its poor soil, it was called "the sandbox of the Holy Roman Empire." Its countryside had been ravaged and depopulated by the constant passage of foreign Protestant and Catholic armies. In 1640, however, the ancient House of Hohenzollern, which had ruled Brandenburg since 1417, had produced a remarkable ruler, the Elector Frederick William. Although his territories were scattered and impoverished, he dreamed of a new Hohenzollern state which should be independent, united and powerful. Frederick William, who came to be called the Great Elector, created the machinery which was to raise Prussia to the front rank of European states. He organized an efficient, centralized government with a disciplined civil service, a postal system, a graduated income tax. And by 1668, after forty-eight years as ruler, the Great Elector had given Brandenburg, which had a population of only one million people, a modern, standing army of 30,000 men.
The Great Elector's descendants built faithfully on his foundations. By 1701, the power of the Prussian state had grown to the point that the Great Elector's son Frederick was no longer content with the title of elector. He wanted to be a king. The Emperor in Vienna, who awarded such titles, was reluctant; if he made Frederick a king, then the electors of Hanover, Bavaria and Saxony would also want to be kings. But in this case the Emperor had no choice. About to enter what he knew would be a long and difficult war with France (the War of the Spanish Succession), he badly needed the Prussian regiments which Frederick was only too happy to rent to him—if he could become a king. The Emperor bowed, and on January 18, 1701, Frederick placed a crown on his own head in Konigsberg to become King Frederick I of Prussia.