Henri Labrouste was a French architect known for his innovative use of iron and glass in his buildings. Some of the synonyms for Henri Labrouste may include 'master of modern architecture', 'pioneer of iron and glass construction', 'innovative designer', and 'champion of structural rationalism'. Labrouste had a significant influence on the development of modern architecture through his groundbreaking use of materials and his emphasis on function over ornamentation. Today, he is recognized as one of the most important architects of the 19th century and his works remain highly regarded for their technical and aesthetic achievements.