14 Dec 1895 - Birth of her biological father George Windsor at Sandringham Estate, Norfolk, England 

4 Aug 1900 - Birth of her biological mother Elizabeth Bowes-Lyon at near 'Saint Paul's Walden Bury' House ( Strathmores' Family Home ), Saint Paul's Walden, Hitchen, Hertfordshire, England 

10 Jun 1921 - Birth of her husband Philip Mountbatten at Corfu, Greece 

26 Apr 1923 - Marriage of parents at Westminster Abbey, Westminster, London, England 

21 Apr 1926 - Birth at Mayfair, London, England 

20 Nov 1947 - (21 years) Marriage with Philip Mountbatten at Westminster Abbey, Westminster, London, England 

6 Feb 1952 - (25 years) Death of her biological father George Windsor at Sandringham House, Sandringham, Norfolk, England 

Feb 1952 - (25 years) Burial of her biological father George Windsor

30 Mar 2002 - (75 years) Death of her biological mother Elizabeth Bowes-Lyon at Royal Lodge', 'Windsor Great Park', near Windsor, Berkshire, England 

Apr 2002 - (75 years) Burial of her biological mother Elizabeth Bowes-Lyon

9 Apr 2021 - (94 years) Death of her husband Philip Mountbatten at Windsor Castle, Berkshire, England 

8 Sep 2022 - (96 years) Death at Balmoral Castle, Aberdeenshire, Scotland 

Sep 2022 - (96 years) Burial