Write the bio-sketch of the following famous personality.
Full Name : Diana Frances Spencer
Father : John Spencer, 8th Earl of Spencer
Born : 1 July 1961
Died : 31 August 1997 (aged 36) Pitie-Salpetrere Hospital, Paris, France
Burial : Althorp, Northamptonshire, UK
Spouse : Charles, Prince of Wales (Married 29 July 1981)
Sons : Prince William and Prince harry [Advanced]