The aristocrat, who is the daughter of the late John Crichton-Stuart, 7th Marquess of Bute and fashion designer Serena Bute, hosted guests - at her family seat.
A glossy posse including a sports instructor, an interior designer and childhood sweethearts will be cheering on their Welsh football players as they take on the Three Lions tonight.
Georgina Irwin, the fiancée of England goalkeeper Aaron Ramsdale, shared a selfie with her 16,400 Instagram followers this afternoon of herself proudly modelling the England team s shirt.