Kate Middleton is stepping out for a rare appearance amid her cancer treatment.

The Princess of Wales, 42, was spotted on her way to a morning service at Crathie Church on the Balmoral Estate on Sunday, Aug. 25.

She was joined in the car by her husband, Prince William, and the couple’s oldest child, son Prince George, for the daytime outing, which marked her first public appearance in over a month.

Kate wore a light brown tartan trench coat from Holland Cooper that she paired with a brown felt feather hat from Hicks & Brown, while William, 42, sported a navy suit. The royal couple appeared to be happily chatting as they made their way to the church service.

The trio was joined by King Charles and Queen Camilla, as well as Prince Edward and Sophie, the Duchess of Edinburgh, plus their son, James Wessex.

Princess Kate revealed her cancer diagnosis in March and shared that she was undergoing chemotherapy. At the time, she requested “time, space and privacy while I complete my treatment.”

In a later update, the Princess of Wales said in a personal letter that “there are good days and bad days,” but she shared a hope to join “a few public engagements over the summer, but equally knowing I am not out of the woods yet.”