But Kate’s parents, who live in a 7=seven-bedroom Grade II-listed Georgian property in Berkshire, have now entered Tier 4 with the Queen, meaning they can no longer make the trip to Norfolk.
People living in a Tier 4 region can’t travel out, and those living elsewhere cannot enter.
While sister Pippa and her husband James Matthews are also in Tier 4, living in a £17million six-bed home in London’s Chelsea.
The royals have not since revealed any replacement plans for the day and could opt to stay at Anmer Hall.