Kate Middleton Wears Diana's Tiara at Historic Oman State Banquet

Key points

• Kate Middleton wore Princess Diana's Lover's Knot Tiara and the Three Feathers Brooch at the state banquet for the Sultan of Oman at Windsor Castle on October 20, 2026.
• King Charles III hosted the three-course dinner, praising Oman's role in global energy security and economic diversification.
• The visit marks the first state visit by an Omani ruler to the UK in over 40 years.
• Kate's butter-yellow Elie Saab gown snagged under her chair leg during the dinner, but she appeared unfazed and later stood without visible damage to the dress.
• Prince William and Kate led the ceremonial welcome for Sultan Haitham bin Tariq al-Said in London before accompanying him to Windsor.

Background

This event follows Prince William's expanding role as a working royal after King Charles's 2024 cancer diagnosis. Experts have noted that William has avoided the jealousy King Charles felt toward Princess Diana by embracing Kate's growing public popularity. The couple's united front, strengthened by Kate's cancer battle and shared public duties, is seen as strengthening the monarchy. The state banquet is part of a historic diplomatic engagement, marking the first Omani state visit to the UK in over 40 years.

Why it matters

The banquet highlights the diplomatic significance of the first Omani state visit to the UK in over 40 years, underscoring Oman's role in global energy security. Kate's choice of Diana's tiara reinforces her role as a bridge to royal history, while her unfazed response to the gown mishap reflects the public's perception of her resilience. The event also underscores William's expanding role as a working royal, supporting the monarchy's stability after Charles's health issues.

What to watch

The diplomatic engagement may lead to further discussions on energy security and economic diversification between the UK and Oman. Kate and William may continue to represent the monarchy in international events, reinforcing their united front. The public may continue to monitor Kate's public appearances and her use of historic royal jewels, which often draw media attention.