How did Margaret sister of the present Queen Elizabeth die?

Answer 1

Princess Margaret Rose Windsor died of some form of Cancer. She was in her seventies, young, as royalty goes. Queen Margherita of Italy- which can be translated as Margaret had coronary thrombosis, according to the New York Times, She was 75 but looked older with her regal white hair.

Answer 2

Princess Margaret, Countess of Snowdon, (Margaret Rose; 21st August 1930 – 9th February 2002).
She was a heavy smoker and suffered lung problems and an operation in 1985, a bout of pneumonia in 1993, and several strokes between 1998 and 2001. She was aged 71 at her death.

Answer 3

She is alive

Answer 4

She died of a stroke.