Egidio Marzona, Collector Who Built a Monument to the Avant-Garde, Dies at 81

Egidio Marzona, the influential German-Italian collector, publisher, and patron, has died at age 81 in Berlin. His vast collection focused on 20th-century avant-garde movements, from Dada and Bauhaus to Fluxus and Arte Povera, and was distinguished by its deep archival holdings of letters, diagrams, and ephemera that documented the intellectual processes behind the art.