On September 12, 1949, the liberal politician Theodor Heuss, party leader of the „Freie Demokratische Partei“ (FDP), was elected by the Bundesversammlung (Federal Convention) as the first Bundespräsident, i. e. head of state, of the newly founded Bundesrepublik Deutschland. As a young man Heuss had been a close friend and political ally of Friedrich Naumann, the protestant pastor and left wing liberal politician, supported by Ernst Troeltsch. Heuss then working as a political journalist for liberal newspapers and Naumann’s weekly journal Die Hilfe , was an admirer of Troeltsch, and since 1910 they often met in Heidelberg, at Villa Fallenstein, Ziegelhäuser Landstraße 17, where Max and Marianne Weber as well als the Troeltschs lived; Heuss frequently visited Max Weber’s Sunday jour fixe. When in 1915 Troeltsch became a professor at the Philosophical Faculty of Berlin University Heuss regularly kept in contact with him especially through Hans Delbrück’s „Mittwochabend“, a weekly gathering of liberal intellectuals, professors, politicians and journalists discussing political reforms and the ongoing war. Both Troeltsch and Heuss, 19 years younger, demanded the democratization of the Deutsches Reich, and after the end of the war and the revolution of 1918/19 they became members of the newly founded left wing liberal party „Deutsche Demokratische Partei“ (DDP). After Troeltsch’s sudden death on February 1st, 1923, Heuss wrote an obituary, and, together with his wife Elly Heuss-Knapp, attended the funeral service conducted by Adolf von Harnack. Heuss was a member of the „Demokratischer Klub Berlin“, founded in 1919 by liberal politicians, bankers and academics to regularly discuss the political situation of the new democratic state, the Weimar Republic. Unknown until now, seven weeks after Troeltsch’s death the „Demokratische Klub“ invited its members (the club only had male mebers!) to a memorial act for Troeltsch. On this occasion Heuss delivered a speech „Zu Ernst Troeltschs Gedächtnis“ („To the Memory of Ernst Troeltsch“) which is published here for the first time.