Reports of the Queen's poor health have led to a visit by the royal couple.
Buckingham Palace said that the monarch is being watched.
The duke and duchess are doing charity work.
A royal spokesman told Insider that the Duke and the duchess are going to Scotland as news of the Queen's health problems gets attention.
The spokesman didn't say when the prince and his bride would arrive in Scotland.
The Queen is under medical supervision at her summer residence.
Buckingham Palace said that the Queen's doctors were concerned for her health and recommended she remain under medical supervision.
The Queen's condition was not disclosed by the spokesman.
The couple are in Europe for a number of charity events. The One Young World Summit took place in Manchester, England.
They were due to attend the Well Child Awards in London on Thursday, however it is not clear if that appearance will still be possible.
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