“And when the hair-raising journey came to an end, Lord Mountbatten asked the Queen why she hasn’t protested, saying, ‘You’re the Queen’.
“But the Queen said: ‘Oh, but you heard what he said – and he meant it’.”
The road near Sandringham on which the Duke of Edinburgh crashed is expected to have its speed limit decreased amid safety concerns when the council meet on Friday.
On Friday, Norfolk County Council will sit to discuss introducing average speed cameras and dropping the limit from 60mph to 50mph.
Talking of the crash, Mr Brandreth told Today: “I’m sure this morning, as well as being grateful he has survived, he will be concerned for the other people involved.
“He will be shaken by this experience and frustrated that after 80 years of driving, he’s likely now not be driving outside of the private grounds of Sandringham and Windsor.
“I’m sure he’ll no longer be driving on public roads I’d imagine after this.”