Plenum – a full assembly, as a joint legislative assembly
Bellatrix

)O(

After she had been captured, Bellatrix was nothing but excited for her trial. At last, she would be given the chance to stand before the whole Wizarding world and declare her loyalty to the Dark Lord. It was a dream come true.

When she faced every member of the Wizengamot, knowing full well that she would be sentenced to life in Azkaban, she smiled, because she knew that even with all their combined efforts, they could not keep her or the Dark Lord from rising again.