Watch the Queen's final Christmas message
The late monarch, who died on 8 September aged 96, poignantly reflected on a year of personal grief in her Christmas message last year.
She said there was "one familiar laugh missing" following the loss of her husband and long-serving consort in April 2021.
She told viewers: "His sense of service, intellectual curiosity and capacity to squeeze fun out of any situation were all irrepressible.
"That mischievous, enquiring twinkle was as bright at the end as when I first set eyes on him.
"But life, of course, consists of final partings as well as first meetings.
"And as much as I and my family miss him, I know he would want us to enjoy Christmas."
The Queen also acknowledged the impact of the COVID pandemic, which forced her to celebrate Christmas at Windsor rather than Sandringham.
Read more: The Queen by the people who knew her
She said: "While COVID again means we can't celebrate quite as we may have wished, we can still enjoy the many happy traditions."
The monarch looked ahead to the Platinum Jubilee marking her 70-year reign, calling it "an opportunity for people everywhere to enjoy a sense of togetherness".
The Christmas speech – written, as always, by The Queen alone – proved to be her final televised speech.
She used her 2020 message to to praise the "indomitable spirit" of those who had risen "magnificently" to the challenges of the pandemic.
Her successor, King Charles III, is expected to carry on the royal festive tradition, which began with King George V in 1932.