Moreover, a source who knows a senior official involved in royal funeral planning said: "Of course, they are looking at every aspect of Menai Bridge. The queen's funeral went like clockwork and set a high bar. It's not an emotional thing; it's a job taken very seriously, and understandably no one plans to get caught out."
Although the plans are constantly reviewed, a military source said reading anything into that fact would be "absurd." "Planning for the worst is what the military do," they said.
Despite a lack of official updates from the palace, some key events are approaching that will provide the most important insights into how Charles is dealing with the disease. Among them is his official birthday parade, Trooping the Color, on June 15, which the Ministry of Defense has announced that he will attend.