Isabelle Collin Dufresne, the French-born artist, actress and author known as Ultra Violet, the beauty among the superstars of ’s glory days at his studio, the Factory, died early Saturday morning at a Manhattan hospital. She was 78 and lived in Manhattan and in Nice, France.
The death was confirmed by William Butler, a family friend. A cousin, Carole Thouvard Revol, said the cause was cancer.
