British artist and stage designer Es Devlin poses upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Director of the British Museum Nicholas Cullinan poses upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Former Chancellor of the Exchequer George Osborne poses on the red carpet upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

(L-R) Director of the British Museum Nicholas Cullinan, Mayor of London Sadiq Khan and former Chancellor of the Exchequer George Osborne pose on the red carpet upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Mayor of London Sadiq Khan and his wife Saadiya Ahmed pose upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

The Bayeux Tapestry is displayed on a dress modelled on the red carpet at The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Mayor of London Sadiq Khan and his wife Saadiya Ahmed pose upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

The Bayeux Tapestry is displayed on a dress modelled on the red carpet at The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)