Marcel Breuer, Hungarian-American architect and academic, designed the Ameritrust Tower (died 1981)

Marcel Lajos Breuer was a Hungarian-American modernist architect and furniture designer. He moved to the United States in 1937 and became a naturalized American citizen in 1944.

The 9 Cleveland is a residential and commercial complex located in Downtown Cleveland, Ohio, United States, at the corner of East Ninth Street and Euclid Avenue. It includes three buildings, the largest of which is a 29-story, 383 feet (117 m) tower commonly known by its previous name of Ameritrust Tower and formerly known as the Cleveland Trust Tower. The tower was completed in 1971 and is an example of brutalist architecture, the only high-rise building designed by Marcel Breuer and Hamilton Smith. The complex also includes the adjacent Cleveland Trust Company Building, completed in 1908, and the Swetland Building.