to Elisabeth's Roman Catholic faith upon marriage. Reinhard was an altar boy, attending evening prayers and Mass every week with his mother as part of the Catholic minority in Halle. Two of his forenames were musical references: "Reinhard" referred to the hero from his father's opera Amen, and "Tristan" stems from Richard Wagner's Tristan und Isolde. Heydrich's third name, "Eugen", was his late maternal grandfather's forename (Eugen Krantz had been the director of the Dresden Royal Conservatory). Heydrich's family held social standing and substantial financial means. Music was a part of Heydrich's everyday life; his father founded the Halle Conservatory of Music, Theatre, and Teaching and his mother taught piano there. As the oldest son, Reinhard was expected to inherit his father's music conservatory and was trained in music by his father. He learned the piano and violin by the time he was six years old. Heydrich developed a passion for the violin and carried that interest into adulthood; he impressed listeners with his musical talent. His father was a German nationalist with loyalties to the Kaiser, who instilled patriotic ideas in his three children but was not affiliated with any political party until after World War I. The household was strict. Heydrich, initially a frail and sickly youth, was encouraged by his parents to exercise to build up his strength. He engaged his younger brother, Heinz, in mock fencing duels. He excelled in his schoolwork at the secular "Reformgymnasium", especially in the sciences. A talented athlete, he became an expert swimmer and fencer. He was shy, insecure, and was frequently bullied for his high-pitched voice and rumoured Jewish ancestry. These rumours increased after his maternal uncle Hans Krantz married a Hungarian Jew named Iza Jarmy. However, the family maintained cordial relations with the Jewish community; many Jewish students attended the Halle Conservatory, and its cellar was rented out to a Jewish salesman. Heydrich was friends with Abraham Lichtenstein, son of the cantor. In 1918, World War I ended with Germany's defeat. In late February 1919, civil unrest—including strikes and clashes between communist and anti-communist groups—took place in Heydrich's home town of Halle. Under Defense Minister Gustav Noske's directives, a right-wing paramilitary unit was formed and ordered to "recapture" Halle. Heydrich, then 15 years old, joined Maercker's Volunteer Rifles (a paramilitary Freikorps unit). This was largely symbolic, as Heydrich was too young for military service. There is no evidence that