Wilhelm, German Crown Prince, Crown Prince of Prussia (Friedrich Wilhelm Victor August Ernst; 6 May 1882 – 20 July 1951), was the eldest child of the last German emperor, Wilhelm II, and his consort Augusta Victoria of Schleswig-Holstein. As Emperor Wilhelm's heir, he was the last German Crown Prince and Crown Prince of Prussia, until the abolition of the monarchy.

Wilhelm became crown prince at the age of six in 1888, when his grandfather Frederick III died and his father became emperor. He was crown prince for 30 years until his father's abdication and the fall of the empire on 9 November 1918. During World War I, he commanded the 5th Army from 1914 to 1916 and was commander of the Army Group German Crown Prince for the remainder of the war. After his return to Germany in 1923, he fought the Weimar Republic and campaigned for the reintroduction of the monarchy in Germany. After his plans to become President had been blocked by his father, Wilhelm supported Adolf Hitler's rise to power, but when Wilhelm realised that Hitler had no intention of restoring the monarchy, their relationship cooled. Wilhelm became head of the House of Hohenzollern on 4 June 1941 following the death of his father and held the position until his own death on 20 July 1951.

Early life

thumb|upright|left|Four generations in the [[House of Hohenzollern: Emperor Wilhelm I, Crown Prince Frederick, Prince Wilhelm and the newborn Prince Wilhelm in Potsdam in 1882.]]

Wilhelm was born on 6 May 1882 as the eldest son of the then Prince Wilhelm of Prussia, and his first wife, Princess Augusta Victoria of Schleswig-Holstein. He was born in the Marmorpalais of Potsdam in the Province of Brandenburg, where his parents resided until his father acceded to the throne. When he was born, his great-grandfather Wilhelm I was the German Emperor and his grandfather Crown Prince Frederick was the heir apparent, making Wilhelm third in line to the throne.

thumb|upright|[[Queen Victoria with her great-grandson Prince Wilhelm in 1883]]

His birth sparked an argument between his parents and his grandmother Crown Princess Victoria. Before Wilhelm was born, his grandmother had expected to be asked to help find a nurse, but since her son did everything he could to snub her, the future Wilhelm II asked his aunt Princess Helena to help instead. His mother was hurt and his grandmother, Queen Victoria, who was the younger Wilhelm's great-grandmother, was furious.

Prince Wilhelm would have five younger brothers – Prince Eitel Friedrich, Prince Adalbert, Prince August Wilhelm, Prince Oskar and Prince Joachim – and one younger sister: Princess Viktoria Luise. He spent his childhood with his siblings at Marmorpalais and after his father's accession to the throne at the New Palace, also in Potsdam.

In 1888, the Year of the Three Emperors when his great-grandfather and grandfather both died, his father became German Emperor, and six-year-old Wilhelm became the heir apparent to the German and Prussian thrones with the title of crown prince. He spent his school days with his brothers at the Prinzenhaus in Plön in his mother's ancestral Schleswig-Holstein.

Wilhelm was a supporter of association football, then a relatively new sport in the country, donating a cup to the German Football Association in 1908 and thereby initiating the Kronprinzenpokal (now Länderpokal), the oldest cup competition in German football. The German club BFC Preussen was also originally named BFC Friedrich Wilhelm in his honour.

In 1914, the Kaiser ordered the construction of Schloss Cecilienhof in Potsdam for Prince Wilhelm and his family which angered him. The Schloss was loosely inspired by Bidston Court in Birkenhead, England, resembling a Tudor manor. Completed in 1917, it became the main residence for the Crown Prince for a time.

World War I

Wilhelm had been active in pushing German expansion, and sought a leading role on the outbreak of war. Despite being only thirty-two and having never commanded a unit larger than a regiment, the German crown prince was named commander of the 5th Army in August 1914, shortly after the outbreak of World War I. However, under the well-established Prussian/German General Staff model then in use, inexperienced nobles who were afforded commands of large army formations were always provided with (and expected to defer to the advice of) experienced chiefs of staff to assist them in their duties. As emperor, Wilhelm's father instructed the crown prince to defer to the advice of his experienced chief of staff Konstantin Schmidt von Knobelsdorf.

In October 1914 Wilhelm gave his first interview to a foreign correspondent and the first statement to the press made by a German noble since the outbreak of war. He denied promoting military solutions to diplomatic problems, and said this in English: