The King, the Queen Consort and senior royals are due to gather at Windsor Castle for the first Easter Sunday service of Charles’s reign.
The royal family will be out in force at St George’s Chapel in the grounds of the Berkshire castle for the traditional Easter Day Mattins.
A staple in the royal calendar, last year’s event saw the now-Prince and Princess of Wales attend in the spring sunshine with their two eldest children, Prince George and Princess Charlotte.
Elizabeth II is buried in the church’s tiny King George VI Memorial Chapel, alongside Prince Philip, the late Duke of Edinburgh, and her late parents George VI and the Queen Mother, with their four names inscribed on a new black stone slab set in the floor.
The Windsors gathered at St George’s in September for the monarch and royal matriarch’s televised committal service and then private burial following her state funeral in Westminster Abbey.
The late Queen missed last April’s Easter Sunday service due to mobility problems.
Charles, as monarch, has succeeded his mother to become the Supreme Governor of the Church of England.
In less than a month’s time, he will be crowned alongside Camilla in a religious service in Westminster Abbey.
As the Prince of Wales, Charles often released an Easter message and last year highlighted the millions of displaced people “wounded by the past, fearful of the future”, but this year has not, likely to be a reflection of his new role as head of state.