On Sunday, Prince Philip was absent from an Easter service, which was attended by his wife and other members of the royal family at St. George's Chapel in Windsor, which is also the venue for Prince Harry and Meghan Markle's wedding on May 19, CNN reported.
The Duke of Edinburgh has been admitted to hospital for planned surgery on his hip tomorrow, Buckingham Palace said.
He couldn't attend the Queen's annual church service at St. George's Chapel, where Prince Harry and Meghan Markle will Wednesday on May 19, with a courtier explaining: "The Duke of Edinburgh has an issue with his hip which is affecting his mobility".
Philip withdrew in March from a planned appearance with his son, Prince Andrew, the Duke of York, at Windsor Castle to mark Andrew's role as colonel of the Grenadier Guards, which he is taking over from Philip.
However, the Duke of Edinburgh attended Christmas services with his family in December, and was seemingly in good spirits.
Details of the duke's condition, or which joint is causing the issue, have not been released by Buckingham Palace but the late Queen Mother underwent two successful hip operations in the 1990s, first when aged 95 then later when she was 97.
The Duke of Edinburgh retired from public duties in August 2017, although he still attends the occasional engagement. He was also hospitalized for an "infection stemming from a pre-existing condition" in June of past year.
The royal couple celebrated their 70th wedding anniversary in November previous year.