It comes after a Freedom of Information request from The National showed John Somers, principal private secretary to Ms Sturgeon, had emailed the royals multiple times about the “major impact” the tour would have.
On November 12, Mr Somers raised concerns about plans for William and Kate to be greeted by a bagpiper at Edinburgh train station, as well as their planned visit to the Scottish Ambulance Service (SAS).
His email said: “You’ll know that we are currently asking people living in Scotland to avoid unnecessary travel from local authority to local authority and to keep journeys within the area they live to an absolute minimum.
“From a personal point of view I think the [train tour] is one which would mean a lot to many people living throughout the country.
“My anxiety though is the practical aspects of it and how presentationally it may be difficult if travel restrictions are in place. I think my view is that at the moment the chances of the tour having to be postponed are potentially quite high.”
