Kate did not bow to the Queen at the coronation. The reason for this, according to the royal biographer, is the number of guests the princess was allowed to bring to the event.
Tension in the relationship between the bride and mother-in-law is a common situation in almost every ordinary family, probably even when it comes to the Royal family. William and Kate were angry. At that moment it was completely noticeable," says Tom Bauer, who wrote the biography of the royal family "Revenge"