On Thursday, King Philippe and Queen Mathilde attended the Founder's Day Parade at the Royal Hospital Chelsea in London. The Day celebrates the founding of the Royal Hospital Chelsea in 1681 by King Charles II.

In the evening, King Philippe and Queen Mathilde were received by King Charles and Queen Camilla at Windsor Castle.

Queen Mathilde wore a Natan dress (with thanks to GardeRobeRoyale) with her Gianvito Rossi pumps, a Fabienne Delvigne headpiece, and her Rolex watch.

In the evening, Queen Mathilde wore her Natan dress with her Rolex watch.