conceptual art ulay is dead at 76

Frank Uwe Laysiepen, known as Ulay, has died at age 76 in Ljubljana, Slovenia. The German-born artist was a pioneer of performance art, photography, and body art, best known for his collaborative works with former partner Marina Abramović, including the iconic "Relation Works" series and their 1988 walk along the Great Wall of China. Ulay had been recovering from lymphatic cancer; the cause of death has not been confirmed. He leaves behind the ULAY Foundation in Amsterdam and a project space in Slovenia.