LONDON (AP) — Queen Elizabeth II lives on at the Cool Britannia gift shop across the road from Buckingham Palace.

Four years after the queen’s death, the shop is doing a brisk business in mugs, tea towels and key rings bearing the likeness of Britain’s longest-reigning monarch as the nation marks the centenary of her birth on Tuesday. Items featuring her son King Charles III? Well, not so much.

“We still sell more than the king any day,’’ said Ismail Ibrahim, the store’s manager.

The late queen’s memory looms over the monarchy after a 70-year reign that saw her evolve from the glamorous young sovereign who cheered Britain during the gloomy post-war years to the beloved national grandmother who rallied the country during the COVID-19 pandemic.

Still ‘the queen’

When she died in September 2022, Elizabeth was the only monarch most Britons had ever known. Even now, mention of “the queen” is more likely to evoke thoughts of Elizabeth than of Queen Camilla, Charles' wife.

But the passage of time has also tarnished the late queen’s legacy. While she is celebrated as a symbol of tradition and continuity who helped unite Britain as the end of empire, economic struggles and mass migration changed the nation’s perception of itself, revelations about the former Prince Andrew’s links to the sex offender Jeffrey Epstein have raised questions about why she let the problem fester for years.

“Despite her absence, Elizabeth II remains this key presence whenever we think about the monarchy,’’ Ed Owens, author of “After Elizabeth: Can the Monarchy Save Itself?’’ told The Associated Press.

“She’s certainly the most significant figure in the history of the institution in the last 100 years and, I think, therefore deserves probably the attention that’s going to be focused on her in connection with what would have been her 100th birthday.”

The festivities include a Buckingham Palace reception where Charles will congratulate centenarians who share the late monarch's birthday, and the dedication of a memorial garden at Regent's Park in central London. An exhibit of the queen's fashions is already underway.

An unexpected reign

Elizabeth Alexandra Mary Windsor wasn’t meant to wear the crown. Born on April 21, 1926, she started her long life not in a castle but at 17 Bruton St., a townhouse in London’s Mayfair district.

As the elder daughter of King George V’s second son, Elizabeth was expected to live the life of a minor royal. Dogs and horses, a country house, a suitable match — a comfortable but somewhat anonymous life — seemed her future.

But destiny intervened. A decade after Elizabeth’s birth, her uncle King Edward VIII abdicated to marry the American divorcee Wallis Simpson. Elizabeth’s father became King George VI, thrusting the young princess into the spotlight as heir to throne.

Elizabeth became queen the day her father died on Feb. 6, 1952. Just 25, she heard the news in Kenya and hurried home to take up her duties.

Global ambassador

For decades, she presided over the annual opening of Parliament in crown and ermine robe, hosted banquets for visiting leaders at Buckingham Palace and made thousands of appearances across the U.K., often wearing brightly colored suits to make sure the people could catch a glimpse of their queen.

She also became a global ambassador for brand Britain, making more than 200 overseas trips that helped bolster ties with one-time colonies from India to Tanzania, former enemies Germany and Japan and long-time friends such as the United States.

Late in life, the queen became an internet star when she and James Bond star Daniel Craig used moviemaking sleight of hand to parachute into the opening ceremony of the 2012 London Olympics and teamed up with Paddington Bear to celebrate her 70 years on the throne

In a world of relentless change, she moved with the times — applauding the nation’s successes and consoling Britons during difficult times, while remaining above the fray of politics, Robert Hardman, author of “Elizabeth II: In private. In public. The Inside Story,’’ told the AP.

Scandal's shadow

But those accomplishments make her failure to end the scandal surrounding her second son even more glaring.

Despite concerns about his boorish behavior, questionable business dealings and unsavory friends, Andrew spent 10 years as Britain’s special envoy for international trade and remained a prince of the realm until the details of his relationship with Epstein were revealed last year. In an effort to shield the monarchy from the continuing fallout, Charles finally stripped his younger brother of his princely title. He is now known simply as Andrew Mountbatten-Windsor.

“He was problematic and that gave her cause for worry,’’ Hardman said. “But I do think people let him have an easy ride because they thought if they came down hard on him, they might somehow upset the queen. Now that’s partly attributable to her, but partly attributable to others.”

Besides, her “great achievements’’ far outweighed any errors, Hardman said.

Elizabeth took the throne as a young woman with two small children at a time before jet travel existed and no one had even thought of going to the moon, then remained a constant presence in British public life across generations.

“She just reigned through this vast span of the ages and was as authoritative and loved and respected at the end as she was at the beginning,” Hardman said. “And she was working till the very end, ‘til her last day.”

As historians debate the queen’s legacy, members of the public are making their own judgements.

Take Sylvie Deneux, and her daughter Clara, who stopped by Cool Britannia during a visit to London from their home in Lille, France.

They praised the late monarch for her elegance and described her as an icon. But when asked about Mountbatten-Windsor, Sylvie Deneux, 49, paused and looked at her daughter. Failing to quickly quash the scandal was a mistake, she said. But Deneux could still muster sympathy for Elizabeth, because she made those decisions as a mother, not as a queen.

“Can we blame her?’’ she asked. “I’m not sure.”