Carrie Symonds will accompany her boyfriend Boris Johnson when he stays with the Queen at Balmoral later this summer.
The Prime Minister’s girlfriend, 31, will attend the traditional weekend at the monarch’s Scottish estate, it is understood.
Every year the Queen spends the summer at Balmoral Castle, Aberdeenshire, where she is joined by other members of the royal family – and traditionally hosts the prime minister for a weekend in September.
It is thought that Ms Symonds will be the first unmarried partner of a sitting PM to stay at Balmoral.
Former prime minister David Cameron once said there was not much “chillaxing” – chilling out and relaxing – at the castle, with the royals spending their…