Philip Johnson, at once the elder statesman and the enfant terrible of American architecture, died yesterday at the Glass House, the celebrated estate he built for himself in New Canaan, Conn., said David Whitney, his companion of 45 years. He was 98 years old.

Often considered the dean of American architects, Mr. Johnson was known less for his individual buildings than for the sheer force of his presence on the architectural scene, which he served as a combination godfather, gadfly, scholar, patron, critic, curator and cheerleader.

The acclaimed architectural historian/critic Paul Goldberg has written a lenghty article reflecting on the life and work of Phillip Johnson: Philip Johnson, Elder Statesman of U.S. Architecture, Dies at 98 (New York Times)