[2] Löwenthal-Chlumecky worked as a bank clerk before joining the Austrian Foreign Service in March 1932.
Upon the "Annexation of Austria," the "Law for the Restoration of the Professional Civil Service" was applied and Löwenthal-Chlumecky was imprisoned because of his Jewish background.
[5] When the South Tyrolean Liberation Committee became active with isolated explosive attacks, Löwenthal was called to Vienna for consultations in February 1960.
[6] In 1966, he resided in Rome and was accredited to the government in Tunis as Ambassador Extraordinary and Plenipotentiary.
[12][13] Löwenthal-Chlumecky died in Bolzano on 27 August 1995 was buried in the Protestant Cemetery, Rome.