The subject-matter deals with a period of over twenty-five years in the life of a young European nation, in the course of which she gained her independence and strove successfully to retain it, whilst more than trebling her resources in peaceful work. In this eventful period greater changes have taken place in the balance of power in Europe than in many preceding centuries. A republic has replaced a monarchy in France, and also on the other side of the Atlantic, in Brazil, since the days when a young captain of a Prussian guard regiment, a scion of the House of Hohenzollern, set himself single-handed the Sisyphean task of establishing a constitutional representative monarchy on a soil where hitherto periodical conspiracies and revolts had run riot luxuriously. Just here, however, our democratic age has witnessed the realisation of the problem treated by Macchiavelli in "Il Principe"--the self-education of a prince. To-day, the man who thirty-three years ago came down the Danube as a perfect stranger--practically alone, without tried councillors or adherents--is to all intents and purposes the omnipotent ruler of a country which owes its independence and present position entirely to his statesmanship. Nor can there be much doubt that but for him Roumania and the Lower Danube might be now little more than a name to the rest of Europe--as, indeed, they were in the past. II King Charles of Roumania is the second son of the late Prince Charles Anthony[2] of Hohenzollern-Sigmaringen: the elder South German Roman Catholic branch of the House of Hohenzollern, of which the German Emperor is the chief. Until the year 1849 the Hohenzollern-Sigmaringens, whose dominions are situated between Württemberg and Baden, near the spot where the Danube rises in the Black Forest, possessed full sovereign rights as the head of one of the independent principalities of the German Confederation. These sovereign rights of his own and his descendants Prince Charles Anthony formally and voluntarily ceded to Prussia on December 7, 1849. Of him we are credibly informed: "Prince Charles Anthony lives in the history of the German people as a man of liberal thought and high character, who of his own free will gave up his sovereign prerogative for the sake of the cause of German Unity. His memory is green in the hearts of his children as the ideal of a father, who--for all his strictness and discipline--was not feared, but ever loved and honoured, by his family. He was always the best friend and adviser of his grown-up sons." His letters to his son Charles, which are frequently quoted in the present memoir, fully bear out this testimony to the Prince's intimate, almost ideal, relationship with his children, as also to the magnanimity with which he is universally credited. [2] This Prince always wrote his name Karl Anton, as a double name: hence the retention here.