Queen Consort Camilla poses with Queen Rania of Jordan and Crown Princess Mary of Denmark

Queen Consort Camilla received Queen Rania of Jordan and Crown Princess Mary of Denmark at Clarence House on Monday ahead of a reception at Buckingham Palace tonight.

Camilla, 75, looked effortlessly elegant in a blue dress as she appeared in a photo alongside the two other royals.

Rania, 52, looked just as sophisticated, opting for a teal dress with gem-encrusted cuffs and matching heels, while Australian-born Mary, 50, looked flawless in a monochromatic plaid skirt paired with a black blouse.

The Queen Consort hosts a large reception at Buckingham Palace to raise awareness of violence against women and girls; Queen Mathilde of Belgium, Rania and Mary will all be present.

Queen Consort Camilla received Queen Rania of Jordan and Crown Princess Mary of Denmark at Clarence House on Monday ahead of a reception at Buckingham Palace tonight

The photo of Rania, Camilla and Mary, who is married to the heir to the Danish throne, Crown Prince of Denmark Frederik, was shared on Instagram by the Queen of Jordan.

“A lovely afternoon with Her Majesty Queen Consort Camilla and Her Royal Highness Crown Princess Mary of Denmark,” Rania’s caption read.

At Tuesday’s reception, Camilla is expected to give a powerful and personal speech at the event, attended by survivors and their families.

It is being held as part of the United Nations’ 16 Days of Activism Against Gender Based Violence.

Camilla (pictured Nov. 22), 75, looked effortlessly elegant in a blue dress as she appeared in a photo alongside the two other royals

The Countess of Wessex will also be among approximately 300 in attendance, as will politicians and charity representatives from SafeLives, Women’s Aid and Refuge.

Former Spice Girl Melanie Brown, who was awarded an MBE for her work for the domestic violence charity Women’s Aid, and reality TV star Zara McDermott – who has previously spoken about her efforts to end the scourge of ‘ revenge porn’ – will also be there.

A source said Camilla will speak about what she’s learned from her domestic violence work — that survivors want to be heard and believed.

Camilla is expected to speak about prevention and determination to achieve the goal of ending domestic violence for good.

Last month, in what could be seen as an indication of how important the issue is to Camilla, she used her first solo engagement in her new royal title to meet domestic violence officers at Chelsea and Westminster Hospital.

Some of Camilla’s Queen companions – who were announced over the weekend – will make their first public appearance with her at the reception.

Buckingham Palace has said the 75-year-old will have six of the Queen’s companions, not traditional ladies-in-waiting, who are all trusted friends and will support her in carrying out her most important official and state duties.