Live Updates: Britain’s royal family, U.K. and world mourn Queen Elizabeth II’s death

London — People in Britain and around the world are mourning the death of Queen Elizabeth II, the U.K.’s longest-reigning monarch and one of the most enduring royal personalities the world has known. She died Thursday at the age of 96. Buckingham Palace confirmed that the queen had passed away at Balmoral Castle, her official summer residence in Scotland.

The queen’s doctors acknowledged earlier Thursday that she had been placed under medical supervision as they were “concerned” about her health. For months Queen Elizabeth had been scaling back her public engagements, forced to cancel many appearances with the palace citing “mobility issues” and general discomfort.

All four of her children — her eldest son and the new king, Charles, along with his sister Princess Anne, Prince Andrew, and Elizabeth’s youngest son Prince Edward — traveled to Balmoral to be by her side. Prince Charles’ eldest son, Prince William, the new heir to the throne, and his brother Prince Harry were there as well.

The following 10 days will see a meticulously orchestrated process of both mourning and constitutional transition play out across the United Kingdom.

Follow the latest developments below as tributes pour in, and as Britain enters a new era.