Prague architect, designer and teacher Otto Rothmayer (28. 2. 1892 Prague-Vinohrady – 24. 9. 1966 Prague-Břevnov) trained as a carpenter with his father. In the years 1912–1920 he was a student of architect Jože Plečnik at the Prague School of Applied Arts. In 1921, Plečnik chose him as his representative in the Prague Castle Construction Administration. Until 1934, Otto Rothmayer was Plečnik's closest collaborator in the architectural modifications of the exterior and interior spaces of Prague Castle, the castle gardens and the Lán pro TGM. After Plečnik's departure, he independently completed his spatial concepts - already in his own style and with a simpler form concept. From 1946 to 1951, he also worked as a professor at the Prague School of Applied Arts, where he educated a number of outstanding architects and industrial designers. After leaving the Castle in 1956, he began to devote himself intensively to designing museum and gallery expositions, exhibitions and furniture.