When the revival of Renaissance style architecture came "en vogue" in the mid 19th century, it often materialized not just in its original form first seen in Italy, but as a hybrid of all its forms according to the whims of architects and patrons, an approach typical of the mid and late 19th century. Modern scholarship defines the styles following the Renaissance as Mannerist and Baroque, two very different, even opposing styles of architecture, but the architects of the mid 19th century understood them as part of a continuum, often simply called 'Italian', and freely combined them all, as well as Renaissance as it was first practiced in other countries.