The name should ring a bell with true-crime buffs. If not, here's a link to her New York Times obit. The name should also spark interest with movie fans, thanks to "Reversal of Fortune," which starred Jeremy Irons as Claus von Bulow, Glenn Close as Sunny and Ron Silver as lawyer Alan Dershowitz.
Very good movie. Irons won an Oscar for his performance, deservedly so. When I think of von Bulow -- admittedly not something I do often -- I tend to see Irons in my mind's eye.