Henry Hobson Richardson was a prominent American architect of the 19th century. He is best known for his Richardsonian Romanesque style, characterized by the use of heavy stone, rounded arches, and rich decoration. There are several synonyms that can be used to refer to the work of Henry Hobson Richardson, including the Richardsonian style, Richardsonian architecture, and Richardsonian Romanesque. Other terms that may be used include Romanesque Revival, American Romanesque, and H.H. Richardson style. Regardless of the name used, the architecture of Henry Hobson Richardson is recognized for its distinctive style and enduring legacy.