The BBC will be paying tribute to the Queen as the longest-reigning monarch in British history in a new documentary.

The Queen’s Longest Reign: Elizabeth & Victoria will air on 9 September to mark the milestone.

Queen Elizabeth II has surpassed her great-great grandmother Queen Victoria who reigned for 63 years and seven months.  

Phil Dolling, Head of BBC Events, says: “For all of us alive, September 9th is something we will not know again in our lifetimes – a British monarch reigning for more than 63 years and seven months. It’s a remarkable achievement and we’re delighted to be able to pay tribute to Her Majesty the Queen with this documentary.”

The show will be presented by newsreader Sophie Raworth and compares the reigns of the two longest serving women. The film will include contributions from Sir Roy Strong and Lord Professor Peter Hennessy.

The film has been produced and directed by Sally Norris who made The Diamond Queen series.