Romanesque Revival (or Neo-Romanesque) is a style of building employed beginning in the mid-19th century inspired by the 11th and 12th century Romanesque architecture. Unlike the historic Romanesque style, however, Romanesque Revival buildings tended to feature more simplified arches and windows than their historic counterparts.
An early variety of Romanesque revival style known as Rundbogenstil ("Round-arched style") was popular in German lands and in the German diaspora beginning in the 1830s. By far the most prominent and influential American architect working in a free "Romanesque" manner was Henry Hobson Richardson. In the United States, the style derived from examples set by him are termed Richardsonian Romanesque, of which not all are Romanesque revival.
Romanesque Revival is also sometimes referred to as the "Norman style" or "Lombard style," particularly in works published during the nineteenth century after variations of historic Romanesque that were developed by the Normans and Lombards, respectively.