Louis Kahn

Louis Isadore Kahn (born Itze-Leib Schmuilowsky) ( – March 17, 1974) was an Estonian-born American architect. His career was set in Philadelphia. 
He founded his own atelier in 1935. While continuing his private practice, he was a design critic and professor of architecture at Yale School of Architecture from 1947 to 1957. From 1957 until his death, he was a professor of architecture at the School of Design at the University of Pennsylvania.
Kahn died of a heart attack on March 17, 1974 in a bathroom at Penn Station in Manhattan, aged 73.