A spokesperson for the Duke and Duchess of Sussex confirmed that they were heading to Scotland.
The Queen was moved to the Balmoral following concerns from her doctors.
The 95-year-old queen spent a night in hospital last October for an unspecified ailment.
Buckingham Palace made the announcement in a statement on Sunday.
“Her Majesty has regretfully decided that she will no longer travel to Glasgow to attend the Evening Reception of COP26 on Monday, November 1.”
She is resting at Windsor Castle, the world’s oldest inhabited castle.
The funeral will be shown live on television.
There were “conversations about how dark his skin might be when he’s born.”
The development, according to the report, negatively affected another palace employee.
Buckingham Palace has confirmed the illness is not connected to the coronavirus.
