In the first chapter he was found to be hanged in the third cellar between a flat and a set piece from Le roi de Lahore, right next to the entrance to the Phantom's torture chamber.
In the 1925 Lon Chaney silent film adaptation by Universal Pictures he is portrayed by Bernard Siegel and is given a brother Simon Buquet (Gibson Gowland).
In the 1989 Robert Englund movie by Metro-Goldwyn-Mayer, Joseph Buquet blames the Phantom for a falling sandbag that was actually his own fault.
[1] Cautioned by Madame Giry against speaking out, he is later found strangled and hanging from the stage rafters during a performance, throwing the audience into chaos.
In Nicholas Meyer's 1993 novel The Canary Trainer, Erik kills him as punishment for Buquet declaring his love to Christine Daaé.