(CNN)— The London apartment where Diana Spencer lived before becoming Princess of Wales has been commemorated by an official blue plaque.

After a successful election campaign led by the London Parliament, the plaque was posted on the Coleherne Court Building on Old Brompton Street in Kensington on September 29.

Andrew Boff, President of the London Parliament, said: “Diana was and still has a very special place in the hearts of Londoners. We are very happy to see her blue plaque officially placed as a monument to her work for others. .” The unveiling ceremony.

The plaque read: “Mrs. Diana Spencer, later Princess of Wales, lived here from 1979-1981.”

A plaque dedicated to the late Princess Diana.

Thomas Krych/SOPA Images/LightRocket/Getty Images

The two years that Diana spent in apartment 60 at Coleherne Court were formative. She bought the apartment with money inherited from her great-grandmother. The price is £50,000 (US$67,000).

Diana moved to London when she was 18 years old and worked as a nanny and kindergarten. She began dating Prince Charles, heir to the British throne, in 1980 and got engaged a year later.

As her public profile grew, Coleherne Court was often besieged by photographers who wanted to capture photos of future princesses.​​​ After Diana was engaged to Prince Charles, her mother sold the apartment. Today it is still a private residence.

“Her troublesome marriage with Prince Charles and later relationship became the subject of media frenzy and intrusive reports, but she has earned a lasting reputation outside of her personal life for her extensive charity and humanitarian work.”

These plaques are placed on buildings in England, which are related to important historical figures and are maintained by British Heritage. “Discovering blue patches” is a popular hobby for sightseers and history lovers.

Famous people don’t have to be British to get the plaque. Foreigners who have lived in the UK, such as Mahatma Gandhi and Emile Zola, have also been recognized.

There are about 950 blue plaques in London alone.