Perelman met his second wife, Claudia Cohen, in 1984 at Le Cirque. They had one daughter together, Samantha, in 1990. In August 1993, Ron filed for divorce. Claudia left the marriage with well over $80 million. In 2007, Claudia died after a secret seven-year battle with ovarian cancer. Perelman revealed during his speech at her funeral that he'd known about her cancer from the beginning and privately commissioned a vaccine as a part of his efforts to cure her. In March 2008, Perelman decided to change the name of Logan Hall, located at the University of Pennsylvania, to Cohen Hall, after his late ex-wife. He donated $20 million to the University to remodel what is now Perelman Quadrangle and as part of his donation, he had the option to change the name of Logan Hall. His decision to rename Logan Hall dismayed some Penn faculty, alumni, and students.