Queen Elizabeth II
Queen Elizabeth II recently talked about the disadvantages of wearing crown jewels. Pictured: Queen Elizabeth II attends the Windsor Greys Statue unveiling on Mar. 31, 2014 in Windsor, England. Getty Images/Chris Jackson

Queen Elizabeth II recently opened up about the downsides of having to wear a crown.

In the documentary “The Coronation,” her majesty recalled the one and only time she had to wear St. Edward's Crown at the age of 25 — when she was being crowned Queen. “There are some disadvantages to the crowns, but otherwise, they’re quite important things,” she said.

The grandmother of Prince William and Prince Harry said that the crown is not very comfortable. “I’ve seen one coronation and been the recipient in the other, which is pretty remarkable. It’s the sort of beginning of one’s life, really, as a sovereign,” she said (via Entertainment Weekly). She saw her father wear the crown at his coronation as King George VI, in 1937.

After wearing the St. Edward's Crown during her coronation, the Queen has worn the lighter Imperial State Crown for the State Opening of Parliament each year.

Prince Charles, Queen Elizabeth II's oldest son, is next in line to the throne. The new king is likely to wear the St. Edward's Crown at his coronation.

In the event that Prince Charles dies, gets sick or is unable to perform his duties as the king, the position will be handed over to his eldest son, Prince William.

Years from now, Prince George, the son of Prince William and Kate Middleton, may also become king and wear the uncomfortable crown.

But it is important to note that Queen Elizabeth II’s royal succession can change in an instant. Before Prince William and Middleton had children, Prince Harry was third in line to the throne. This means that if his older brother dies or can’t perform any royal duties, he would take his place.

Now that Prince Harry has a niece and a nephew, he is fifth in line to the throne; the birth of William and Kate's third child in May will push him to sixth. His fiancée, Meghan Markle, is therefore unlikely ever to be queen. Prince William’s wife Kate will be crowned as a Queen Consort. It's still an open question what title Prince Charles' wife Camilla will take. Because of her unpopularity after the death of Princess Diana, Charles' first wife, Camilla has said she only wants to become Princess Consort, not Queen Consort.