A FULL-length trailer of season four of Netflix's The Crown has been released, showcasing the Queen's relationship with Princess Diana and Margaret Thatcher.

The first half of the trailer shows tensions between Queen Elizabeth (Olivia Colman) and the new prime minister Margaret Thatcher (Gillian Anderson).

“Two women running the shop, that’s the last thing this country needs,” Prince Philip (Tobias Menzies) tells the Queen, only for her to reply: “Perhaps that’s precisely what this country needs.”

But the relationship soon turns sour, with Elizabeth warning the Prime Minister it is dangerous to have enemies. 

Mrs Thatcher is not the only woman the Queen appears to be in conflict with as Princess Diana (Emma Corrin) joins the family.

"In time, [Diana] will give up her fight and bend, as they all do," the monarch is told.

"Or she will break," Princess Margaret (Helena Bonham Carter) added.

Princess Diana, dubbed the people's princess, received a lot of attention from the public and the press but had her ups and downs within the royal family. 

The world mourned the loss of Diana after a fatal car accident in 1997.

The Crown will hit the streaming service on November 15.