ヨーゼフ・ホフマン
Three notable architects who have designed Bösendorfer piano models are Theophil Freiherr von Hansen (1866), Josef Hoffmann (1909) and Hans Hollein (1990). There were only two Hans Hollein 225 models produced in 1990; one can be found in the lounge of the Grand Bohemian Hotel in Orlando, Florida.