Task: Question Answering
Input (English): Passage: Architectural contributions from Germany include the Carolingian and Ottonian styles, which were precursors of Romanesque. Brick Gothic is a distinctive medieval style that evolved in Germany. Also in Renaissance and Baroque art, regional and typically German elements evolved (e.g. Weser Renaissance and Dresden Baroque). Among many renowned Baroque masters were Pöppelmann, Balthasar Neumann, Knobelsdorff and the Asam brothers. The Wessobrunner School exerted a decisive influence on, and at times even dominated, the art of stucco in southern Germany in the 18th century. The Upper Swabian Baroque Route offers a baroque-themed tourist route that highlights the contributions of such artists and craftsmen as the sculptor and plasterer Johann Michael Feuchtmayer, one of the foremost members of the Feuchtmayer family and the brothers Johann Baptist Zimmermann and Dominikus Zimmermann. Vernacular architecture in Germany is often identified by its timber framing (Fachwerk) traditions and varies across regions, and among carpentry styles.
When industrialisation spread across Europe, Classicism and a distinctive style of historism developed in Germany, sometimes referred to as Gründerzeit style, due to the economical boom years at the end of the 19th century. Regional historicist styles include the Hanover School, Nuremberg Style and Dresden's Semper-Nicolai School. Among the most famous of German buildings, the Schloss Neuschwanstein represents Romanesque Revival. Notable sub-styles that evolved since the 18th century are the German spa and seaside resort architecture. German artists, writers and gallerists like Siegfried Bing, Georg Hirth and Bruno Möhring also contributed to the development of Art Nouveau at the turn of the 20th century, known as Jugendstil in German.Expressionist architecture developed in the 1910s in Germany and influenced Art Deco and other modern styles, with e.g. Fritz Höger, Erich Mendelsohn, Dominikus Böhm, and Fritz Schumacher being influential architects. Germany was particularly important in the early modernist movement: it is the home of Werkbund initiated by Hermann Muthesius (New Objectivity), and of the Bauhaus movement founded by Walter Gropius. Consequently, Germany is often considered the cradle of modern architecture and design. Ludwig Mies van der Rohe became one of the world's most renowned architects in the second half of the 20th century. He conceived of the glass façade skyscraper. Renowned contemporary architects and offices include Hans Kollhoff, Sergei Tchoban, KK Architekten, Helmut Jahn, Behnisch, GMP, Ole Scheeren, J. Mayer H., OM Ungers, Gottfried Böhm and Frei Otto (the last two being Pritzker Prize winners). 
Question: What is the full name of the renowned 20th century architect who conceived of the glass façade skyscraper?
Output (English): Ludwig Mies van der Rohe.