The critically acclaimed Netflix show The Crown will finish after the fifth season its creator says.
Peter Morgan, who also writes the show, originally planned a sixth season, but has decided the time is right to stop.
Harry Potter actress Imelda Staunton will don the famous crown and replace Oscar winner Olivia Coleman. It is not known yet who will play Prince Phillip.
"I have loved watching The Crown from the very start. As an actor it was a joy to see how both Claire Foy and Olivia Colman brought something special and unique to Peter Morgan's scripts," Staunton said in a statement.
"I am genuinely honoured to be joining such an exceptional creative team and to be taking The Crown to its conclusion."
The series will not then cover the recent scandals of Prince Harry and Meghan withdrawing from royal duties or Prince Andrew's association with paedophile Jeffrey Epstein.
Morgan said he felt season five was the right time to stop.
"At the outset I had imagined The Crown running for six seasons but now that we have begun work on the stories for season five it has become clear to me that this is the perfect time and place to stop," Morgan said.
"I'm grateful to Netflix and Sony for supporting me in this decision."
Season one of The Crown first aired on Netflix in November 2016. With Claire Foy playing the Queen and ex-Doctor Who actor Matt Smith playing Prince Philip. It began with the pair's marriage and soon became a firm favourite of viewers and critics.
Season three debuted in December last year and no date has been set for season 4.