Nine men go on trial in Germany on Monday charged with high treason, attempted murder and plotting a violent coup d’etat aimed at installing an aristocrat as national leader and imposing martial law.

The hearing in a maximum security courtroom in Stuttgart marks the start of three marathon trials of 27 people in total accused of conspiring in a plot foiled by authorities at the end of 2022. Together they amount to one of the largest legal proceedings in German history.

Monday’s trial…