Großherzoglich-Sächsische Kunstschule Weimar
Brendel trained and initially worked as a between 1944 and 1948. He then studied, till 1951, under Hans Hofmann-Lederer and at the Weimar Saxon-Grand Ducal Art School. After the Weimar art school was reorganised to become an architecture college Brendel switched to the Dresden Academy of Fine Arts where he continued his studies under and Rudolf Bergander. He then, in 1954, worked briefly as a freelance artist in Dresden.