Queen Camillais making her first official engagement since news broke thatKing Charleshas beendiagnosed with cancer.

On Thursday, the Queen, 76, stepped out at Salisbury Cathedral in Salisbury, England, to attend a musical evening celebrating local charities.

The solo outing was significant as it marked Queen Camila’s first royal duty since the palace announced on Monday that her husband was diagnosed with “a form of cancer” following treatment for abenign prostate enlargement. The 138-word statement specified that King Charles, 75, commenced treatment, would postpone public-facing duties and continue to work behind the scenes.

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Queen Camilla arrives at a musical evening at Salisbury Cathedral on February 08, 2024

Queen Camilla at Salisbury Cathedral on Feb. 8, 2024.Chris Jackson - WPA Pool/Getty

Queen Camilla is greeted by a representative of the regimental charities during a musical evening at Salisbury Cathedral on February 08, 2024

The Queen is expected to play animportant rolein supporting King Charles throughout his period of treatment while continuing with a full schedule of public duties.

“She is his strength and stay like [Prince Philip] was for the lateQueen,” a palace insidertells PEOPLEexclusively in this week’s issue. “She will be great. She will rally him, she will buoy him. She is amazing. She equips him to do the job he has to do.”

Queen Camilla arrives at a musical evening at Salisbury Cathedral on February 08, 2024 in Salisbury, England.

Queen Camilla at Salisbury Cathedral on Feb. 8, 2024.Kirsty Wigglesworth - WPA Pool/Getty

Britain’s Queen Camilla attends a Musical Evening at Salisbury Cathedral to celebrate the work of local charities on February 8, 2024 in Salisbury, England.

Kirsty Wigglesworth - WPA Pool/Getty

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As King Charles steps back from public engagements andKate Middletoncontinues her months-long recuperation followingabdominal surgery, it’s up to Prince William and Queen Camilla to be the face of the monarchy.

Queen Camilla attends a musical evening at Salisbury Cathedral on February 08, 2024 in Salisbury, England.

The Prince of Wales, 41,returned to dutyon Wednesday for the first time since his wife’s surgery, conducting an investiture ceremony at Windsor Castle and attending theLondon’s Air Ambulance Charity Gala Dinnerthat evening.

“It is hard with Kate being ill as well, buthe will step up,” a source close to the royal household says of Prince William.

A source close to the royal household adds of King Charles, “He is a positive person and has a really healthy attitude to looking after his body. Cancer treatment has come a long, long way. He will come through.”

Prince William, Prince of Wales delivers a speech during the London’s Air Ambulance Charity Gala Dinner on February 7.DANIEL LEAL/POOL/AFP via Getty

Britain’s Prince William, Prince of Wales delivers a speech during the London’s Air Ambulance Charity Gala Dinner at The OWO in central London, on February 7, 2024.

DANIEL LEAL/POOL/AFP via Getty

source: people.com