While they keep a lot of their lives private, their joint engagements show the world just how in love they really are. From sweet pats on the back to shared smiles and loving glances, the royal couple seem to be as strong as ever before.
According to friends of the couple, this is because they are at the start of “a new chapter” together, especially after a difficult few years following Princess Catherine’s cancer diagnosis in 2024.
Another source, who knows the couple well, went on to explain how as a couple, William and Catherine are “unshakeable”.
The source said: “Theirs is the marriage that will, if all goes to plan, reset the monarchy for generations to come.”
The source continued: “If continuity and stability is what the monarchy is supposed to give you, you only need to look at this marriage.
“Whatever has happened in his life, in her life, the continuity and stability of their relationship has seen them through it.
“They are exactly the same as they have always been. They’re unshakeable, the two of them.”
It is not known how William and Catherine plan to mark their 15-year wedding anniversary on Wednesday, which falls just days before their daughter Princess Charlotte’s 11th birthday.