LONDON (NEWSnet/AP) — With gun salutes and tolling bells, United Kingdom on Friday marked the anniversary of the death of Queen Elizabeth II and the ascension of King Charles III, who remembered his mother as a symbol of stability during her 70-year reign.

Charles and Queen Camilla observed the anniversary at the family estate in Scotland and attended a service of remembrance at a church nearby, where the late queen had worshiped.

“In marking the first anniversary of her late majesty’s death and my accession, we recall with great affection her long life, devoted service and all she meant to so many of us,” Charles said in a recorded message. “I am deeply grateful, too, for the love and support that has been shown to my wife and myself during this year as we do our utmost to be of service to you all.”

Military units commemorated the king’s accession to the throne by firing salutes near Tower of London and Green Park near Buckingham Palace. The bells of Westminster Abbey pealed at 1 p.m.

Heir to the throne Prince William and his wife, Catherine, attended a commemorative service at St. Davids Cathedral in Wales that included prayers and singing of the hymn “Thou knowest, Lord, the secrets of our hearts.''

In one notable moment, the couple walked to a portrait of the prince’s grandmother and the princess laid flowers in front of the image, then stood in silence.

Prince Harry, who no longer has an official royal role, traveled to London from his home in California to attend a Thursday charity event. He wasn't expected to meet his father or brother during the visit.

Elizabeth, who took the throne at the age of 25, was a broadly respected figure whose constant presence helped unify the United Kingdom as it negotiated the end of empire and the growth of a modern, multi-cultural nation fueled by immigrants from throughout the world. Her death triggered questions about the future of the monarchy.

But Charles has moved smoothly into his role, concentrating on building bridges between the four parts of U.K. and myriad ethnic and religious groups that make up its population.

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