In 1930, Spreti-Weilbach joined the
Nazi Party (membership number 341,877) and its
paramilitary formation, the
Sturmabteilung (SA). By 1931, he joined the inner circle of
Ernst Röhm, who had recently returned from
Bolivia and been appointed SA-
Stabschef by
Adolf Hitler. On 5 January 1932, Spreti-Weilbach was commissioned as an SA-
Sturmführer and assigned as an SA-
Führer for special tasks in the SA-
Standarte 2 of
SA-Gruppe Hochland in Munich. From 1 July 1932 to 1 May 1933, he was an SA-
Führer for special tasks in the Supreme SA Leadership, with a position in the
adjutant's office under Röhm. Spreti-Weilbach already was among Röhm's closest collaborators in March 1932 when
Walter Buch, the chief judge of the Party's internal judicial body, the
Uschla, and his son-in-law
Martin Bormann planned to free the Party from the political liability of the public scandals surrounding Röhm's homosexuality by arranging to have him murdered. In addition to Röhm, four men from his immediate circle, including Spreti-Weilbach, were also slated to be killed. Spreti-Weilbach was targeted by the conspirators not only because of his close association with Röhm, but also because he was suspected of being a homosexual like his chief. The plot unraveled when the alleged hitman warned one of the other intended victims. Shortly after the
Nazi seizure of power in January 1933, Spreti-Weilbach was promoted to the rank of SA-
Sturmbannführer on 1 April. In May 1933, he was next assigned to SA-
Gruppe Schlesien. On 1 November 1933, he returned from Silesia to again serve on the staff of the Supreme SA Leadership, this time as Röhm's chief adjutant. In this position, which he held until his death, he was promoted to SA-
Standartenführer on 1 March 1934. == Arrest and death ==