An uncomfortable moment between Queen Camilla and the Princess of Wales was caught on camera during the formal state welcome for First Lady Melania Trump.

Kate, 43, was deeply engaged in conversation with President Donald Trump’s wife, 55, when the Queen, 78, appeared to signal her to move along — and Kate quickly complied.

The video, filmed on Wednesday, Sept. 17, showed Prince William and Kate greeting the Trumps at Windsor Castle before beginning their multi-day visit to the UK.

The Formal Welcome at Windsor

After the initial greetings, William and Kate escorted the Trumps to meet King Charles and Queen Camilla outside Victoria House.

The monarch welcomed the US president and first lady warmly, as did their private secretaries, Sir Clive Alderton and Sophie Densham, before the groups broke into separate conversations.

While Trump began speaking with Charles and William, Camilla turned her attention to Melania. Kate soon joined in, chatting with the First Lady alongside her stepmother-in-law.

The Queen’s Subtle Gesture

As Kate continued her discussion with Melania, Queen Camilla appeared visibly uneasy, glancing around as if unsure of the dynamic. A short moment later, she gave a discreet hand motion that seemed to urge Kate to step aside.