Answer
Walter Gropius and Marcel Breuer, renowned Bauhaus architects, were I. M. Pei's esteemed colleagues and friends at Harvard University. Gropius, the founder of the Bauhaus movement, and Breuer, a prominent Bauhaus designer, played instrumental roles in shaping Pei's architectural education and practice. Their influence can be seen in Pei's modernist designs, which emphasize simplicity, functionality, and the integration of art and architecture.