Complex sentence: The third Majdanek trial (in German) was held in Düsseldorf beginning on November 26,1975, and lasting 474 sessions, it was West Germany's longest and most expensive trial.
Split into simpler sentences: The third Majdanek trial (in German) was held in Düsseldorf. Beginning on November 26,1975, and lasting 474 sessions, it was West Germany's longest and most expensive trial.