Lady Georgiana Grey was born on 17 February 1801.
She was the daughter of Charles Grey, 2nd Earl Grey, and Hon. Mary Elizabeth Ponsonby.
She died on 14 September 1900 at age 99.

On 31st March 2021, Contributor History Hunter (50801016) submitted the following [accepted in good faith and unedited] biographical information:

By the time of her death in 1900, the Lady Georgiana Grey had lived a long and eventful life. The daughter of Earl Grey 2nd, a famous politician and Prime Minister (1830-34), Georgiana enjoyed a rich and lavish lifestyle, with all of the advantages and connections that her family wealth and status afforded her.

Throughout her life Lady Georgiana Grey attended all of the very best social events, mixing with the British and European Aristocracy of the day. In 1821, at the age of twenty, Georgiana was presented at the Court of King George IV at Buckingham Palace, an honour repeated some eight years later, this time in the "King Drawing Room" at St James Palace in 1829.

In 1831, Georgiana was greatly honoured by being invited to take part in the Coronation of the new King William IV and Queen Adelaide at Westminster Abbey. As one of the "Six Daughters of Earls, Georgiana attended to the Queen during the ceremony.

An extract from Lady Georgiana Bathurst's diary, publish some seventy years after the event, gave some insight into what the day was like:--

"Lady M. Pelham came to fetch me in one of the Queen's carriages, it was a cold morning and not very bright. The streets were lined with people, every window filled, and temporary balconies and galleries erected every spare corner. We called for Lady Georgiana Grey in Downing Street, proceeded to the abbey, and were shown into the Queen's robing room, a temporary room erected for the occasion. After a short time the Queens dressers arrived with the robe, and we made them show us how to carry it. The Queen looked remarkably well, much less red and heated in the face than she generally is. Her dress was beautiful, one mass of silver, gold, and diamonds, her purple cap surmounted by diamonds had a very good effect, though no so becoming as her crown. She then proceeded to put on her robes, which was very soon accomplished, and having sent to announce to the King that she was ready, we prepared to set forth. The Queen begged we would relieve ourselves as much as we could, and at the same time not drag her back".

By the time that Queen Victoria succeeded to the throne in 1838, the unmarried Lady Gerogiana Grey was 37 years old. Despite being considered as "one of the beauties of the period" and a lady who "shone alike in art, music, and politics", it seemed likely that Georgiana would remain unmarried.

Georgiana continued to enjoy popularity amongst the "nobility and gentry" of the day, and during the early years of the new Queens reign, she enjoyed regular invitations from Queen Victoria to attend state balls, concerts, and dinners at Buckingham Palace, Windsor and Osbourne House.

Both Queen Victoria and Lady Georgiana suffered the loss of a close family member in 1861, when in November Georgiana's mother died after a short illness, and Prince Albert, the Queen's beloved husband, passed away suddenly, just a few weeks later.

One of Lady Georgiana's younger brothers, General Charles Grey who had been an officer in the British army, a British MP and political figure in Lower Canada, served as private secretary to Prince Albert between 1849 and 1860. He went onto to serve Queen Victoria as private secretary from 1861 to his death in 1870.

It is perhaps not surprising that over the following years, Queen Victoria and Lady Georgiana Grey became close friends. Both shared a mutual grief from the loss of a dear loved one, and through her brother's connection with the Royal family, often shared a social life that brought the two ladies together.

It is testament to her friendship with Queen Victoria, and a sign of the high regard in which the Queen held Lady Georgiana, that Georgiana's last two addresses were Kensington Palace and Hampton Court Palace. At the "grace and favour" of the Queen, Lady Georgiana was given rooms at Kensington Palace where she lived for a short time, before moving to a set of apartment rooms at Hampton Court Palace in circa 1875. Lady Georgiana Grey lived at Hampton Court Palace until her death in September 1900.

Shortly after her death, a moving obituary was published in the "Gentlewoman" magazine, which read, "The Queen loses in Lady Georgiana Grey, who died last week, a dear friend and sympathiser. Lady Georgiana was a daughter of Earl Grey, the great Reform statesman. In her youth she was a beauty, and retained remnants of that beauty, even though she neared her hundredth birthday. To the last she closely followed public events and during the South African War she read the newspapers avidly every morning, no point escaping her. Her wit and peculiar charm of manner she has handed down to her nephew, the present Earl Grey, one of the most delightful men of the day. Lady Georgiana viewed with some horror the developments of modern women, their too great freedom of thought and speech, their impatience of parental restraint, and their careless manners. At Hampton Court where she was the eldest resident, everyone loved her. Almost to the last she might be seen walking daily in and out the flowery gardens of the old palace. The Queen wrote to congratulate her on every birthday, and on the occasion of the last Jubilee sent her a silver medal.".
Contributor: History Hunter (50801016)