Elizabeth The Queen Mother’s Death – Cause and Date

Born (Birthday) August 4, 1900

Death Date March 30, 2002

Age of Death 101 years

Cause of Death Pneumonia

Profession Queen

The queen Elizabeth The died at the age of 101. Here is all you want to know, and more!

Biography - A Short Wiki

Wife of King George VI and the mother of Queen Elizabeth II who was the queen consort of the United Kingdom from 1936 to 1952. She provided moral support to the British public during World War II. 

As her daughter is Queen Elizabeth II, the elder Elizabeth took the title Queen Elizabeth The Queen Mother to avoid confusion.