Frans Reima Ilmari Pietilä (25 August 1923 – 26 August 1993) was a Finnish architect and theorist. He did most of his work together with his wife Raili Pietilä (Raili Inkeri Marjatta née Paatelainen, 15 August 1926 – 16 May 2021); after 1963 all their works were officially attributed to "Raili and Reima Pietilä". Reima Pietilä was a professor of architecture at the University of Oulu from 1973 to 1979. Life Reima Pietilä was born in Turku, Finland. His father, Frans Viktor Pietilä, was a property owner and his mother, Ida Maria Lehtinen was a housewife. His parents had met each other in the US, when his mother was working as a domestic servant. He had an older sister, the artist Tuulikki Pietilä, who was the partner of the author Tove Jansson. Reima Pietilä attended school in Turku, where he was a school friend of Mauno Koivisto, who would later become the President of Finland. Pietilä graduated in architecture 1953 at the Helsinki University of Technology (TKK). Raili Paatelainen graduated in architecture 1956 also at the Helsinki University of Technology. In 1949–1951 she worked for architect and town planner Olli Kivinen and 1959-1960 for architect Olaf Küttner. Reima and Raili commenced their collaboration in 1960 creating the office Reima Pietilä and Raili Paatelainen, renamed in 1975 to Raili and Reima Pietilä architects. Reima Pietilä and Raili Paatelainen were married in 1963. Their daughter and only child Annukka Pietilä (born 1963), is also a qualified architect. Career Pietilä's career took off after winning the architectural competition for the Finnish Pavilion at the Brussels World Fair of 1958. This was followed by two other significant competition victories, the Kaleva Church in Tampere (1966) and the Dipoli Student Union building for Helsinki University of Technology (1966). The life and career of Reima Pietilä has been well charted in the writings of British architectural historian-critics Roger Connah and Malcolm Quantrill, and to some extent also by the Norwegian architect, theorist and historian Christian Norberg-Schulz. Their basic question is to what extent Pietilä goes against the grain of a Finnish modernist architecture concerned with rationalism and economy. The whole question is problematic, however, because Finland's most famous architect, Alvar Aalto, was also seen as someone who broke the mold of pure modernism, someone who indeed talked about extending the notion of rationalism. Pietilä saw his work as organic architecture, but also very much as modern.