Rupert Murdoch's most recent marriage reminds me of P.G. Wodehouse's dig at Artie Shaw:

"She even knows how many times Artie Shaw has been married, which I'll bet he couldn't tell you himself. She asked if I had ever married Artie Shaw, and when I said No, seemed to think I was pulling her leg or must have done it without noticing. I tried to explain that when a girl goes to Hollywood she doesn't have to marry Artie Shaw, it's optional, but I don't think I convinced her." -- The Mating Season