Henry Richardson was an American architect known for his distinctive style that emerged in the late 19th century. He is best recognized for his use of Romanesque Revival architecture, characterized by robust stonework, rounded arches, and intricate detailing. His most famous work includes the Trinity Church in Boston, which showcases his innovative approach to design. Richardson's influence extended beyond his lifetime, inspiring future architects and movements, including the Chicago School and the Prairie School. His emphasis on craftsmanship and materiality set a precedent for modern architecture, making him a significant figure in the history of American design.