Queen Elizabeth II's funeral on Sept.19 at Westminster Abbey

Palace officials say the state funeral for Queen Elizabeth II will take place on Sept. 19 at Westminster Abbey in London after the public gets an opportunity to pay their last respects to the monarch.

Elizabeth, the nation’s longest-reigning sovereign, died Thursday at her summer retreat in the Scottish Highlands.

Details on the 96-year old Queen’s funeral will be released later, but organizers on Saturday described the ceremony as a "a fitting farewell to one of the defining figures of our times.’’

Palace officials said there would be opportunities to see the late sovereign’s oak coffin as it journeys from Balmoral Castle in Scotland to Edinburgh and again in London, where her body will lie in state for four days starting Wednesday.

Earlier, two days after his mother's death elevated him to the throne, King Charles III was officially proclaimed Britain’s monarch Saturday in a pomp-filled ceremony steeped in ancient tradition and political symbolism - and, for the first time, broadcast live online and on air.

Charles, who spent seven decades as heir apparent, automatically became king when his mother, Queen Elizabeth II, died Thursday. But the accession ceremony was a key constitutional and ceremonial step in introducing the new monarch to the country, a relic of a time before mass communications.

Scores of senior British politicians past and present, including new Prime Minister Liz Truss and five of her predecessors, gathered in the ornate state apartments at St. James’s Palace for the meeting of the Accession Council.

They met without Charles, officially confirming his title, King Charles III. The king then joined them, vowing to follow his mother’s "inspiring example” as he took on the duties of monarch.