Le Trianon is a theatre and concert hall in Paris. It is located at 80, boulevard de Rochechouart, in the 18th arrondissement of Paris, at the foot of the hill of Montmartre. The Trianon-Concert was built as a café concert in 1894 in the garden of the Élysée Montmartre, which was requisitioned for the purpose. Édouard Jean Niermans, a young archiā¦Le Trianon is a theatre and concert hall in Paris. It is located at 80, boulevard de Rochechouart, in the 18th arrondissement of Paris, at the foot of the hill of Montmartre. The Trianon-Concert was built as a café concert in 1894 in the garden of the Élysée Montmartre, which was requisitioned for the purpose. Édouard Jean Niermans, a young architect who designed or rebuilt several theaters around that time, designed and decorated the Trianon-Concert. Opening in 1895, the Trianon-Concert was one of Paris's first music halls. Mistinguett, made her debut at the Petit-Casino and the Trianon-Concert in its first year. Although her voice was thin, she was an accomplished mimic and comedian who became known for her shapely legs and risqué routines, and later became a star at the Moulin Rouge.