King Charles III has appointed historian Anna Keay as the official biographer of Queen Elizabeth II, granting her unprecedented access to royal archives as the monarchy prepares to mark what would have been the late Queen's 100th birthday.

The decision places Keay, an Oxford-trained historian and director of The Landmark Trust, at the center of what is expected to become the definitive account of Elizabeth II's life and reign. The project coincides with a broader program of centenary commemorations across the United Kingdom, underscoring both historical reflection and institutional legacy-building.

Keay's appointment follows reports that King Charles favored a historian with both academic rigor and a fresh perspective, including a preference for a female author. She becomes the first woman to undertake an official biography of a British monarch of this scale, selected ahead of established figures such as Simon Sebag Montefiore, Lord Roberts of Belgravia, and Sir David Cannadine.

In a statement reported by The Guardian, Keay said, "It is a profound honour to have been asked to write the official biography of Queen Elizabeth II." She added, "She was our longest-reigning monarch and an extraordinary woman, whose life spanned a century of great change." Keay also acknowledged the scope of access granted, stating, "I am deeply grateful to His Majesty the king for entrusting me with this responsibility and for granting me access to her papers, and will do all I can to do justice to her life and work."

The biography is expected to draw on extensive primary materials, including Elizabeth II's personal correspondence and official documents housed in the Royal Archives. It marks the first time since her death in 2022 that these records have been opened to an authorized historian, providing a rare opportunity to examine decision-making processes behind seven decades of constitutional monarchy.

Keay's scholarly background suggests the work will balance narrative storytelling with institutional analysis. Her previous books, including The Crown Jewels, The Last Royal Rebel, and The Restless Republic: Britain Without a Crown, reflect a focus on the monarchy's evolving role within British society. The latter earned the Duff Cooper Prize, reinforcing her reputation within historical scholarship.

The timing of the project is closely aligned with the Queen's centenary on April 21, an event that has prompted a series of national initiatives. Among them is the creation of the Queen Elizabeth Trust, a £40 million community-focused charity designed to extend her legacy through public projects.

Key components of the centenary legacy initiatives include:

  •  A £40 million trust aimed at revitalizing community spaces across the U.K.
  •  A digital memorial platform for public contributions and tributes
  •  Plans for a national memorial in St James's Park

Sir Damon Buffini, chair of the trust, emphasized its broader social mission, stating: "This is a real chance to support communities across the United Kingdom and bring shared spaces back to life, places where people of all ages and backgrounds can meet, connect and belong." He added, "I have seen first-hand the difference these spaces can make, creating opportunities, sparking connections and giving people a sense of pride in where they live."