According to the Daily Mail, the duke will be the 25th royal buried in the vault 16 ft underground. Once Queen Elizabeth II passes away, the consort will then be moved to King George VI Memorial Chapel to spend all eternity next to his wife. Currently, the 200-year-old vault hidden below the castle's grounds holds some other notable names, including George III, George IV, George V of Hanover and William IV, Queen Victoria's father Prince Edward, George III's wife Queen Charlotte, and Queen Mary's grandfather Prince Adolphus.
Wales Online shared that the gothic church has a long history behind it and has been around since the 15th century. The chapel has been the scene for many weddings, funerals, and christenings. Royal watchers will recognize it as the backdrop for Meghan Markle and Prince Harry's wedding back in 2018. The funeral today will only consist of 30 family members and millions watching the televised funeral.