King Charles shares a deeply special bond with the Princess of Wales and has frequently been heard referring to her as his "darling daughter in law".
Away from their own close-knit relationship, Kate plays another role in ensuring that the King enjoys a special bond with his grandchildren, Prince George, Princess Charlotte and Prince Louis.
Appearing a recent Channel 5 documentary titled Kate: A Queen for the Future, a top expert examined the ways that Kate is succeeding in carrying out this "important" job.
Referring to this, leading royal author Robert Jobson explained: “Catherine is very important in the relationship between Charlotte, George, Louis and the King." Robert continued: "When William and The King are not necessarily on the best of terms, as sometimes fathers and sons are, it's always Catherine who will make sure that the King, if he wants to see his grandchildren, sees his grandchildren.
Read more on ok.co.uk