Back in Germany he was the Execurive Director of Amnesty International and after retirement he directed the Schleswig Holstein state government's refugee support activities.
Frenz was born on February 4, 1933, in Allenstein, Germany (present day Poland)[1] to a civil servant father and a home making mother, both members of the Nazi party.
[3] In February 1945, when he was aged 11 year he was due to start his education in an elite fascist school, but the Soviet advance into Berlin interrupted that.
[1] In Santiago, he founded a diaconia organisation, and in September 1973 he also founded the Comisión Nacional de Ayuda a los Refugiados (English: National Commission for Refugee Assistance) that supported the legal, spiritual, and social needs of 7,000 refugees.
[2] In 1973, Raúl Silva Henríquez and Frenz both co-founded the Committee of Cooperation for Peace in Chile, later known as La Fundación de Ayuda Social de las Iglesias Cristianas (FASIC), (English: Social Assistance Foundation of the Christian Churches).