Princess Diana struggled for over a decade during her marriage to Prince Charles. The couple ultimately ended up divorcing 14 years after they tied the knot.

On the online forum site Quora, royal fans discussed why the Princess of Wales didn’t split from Prince Charles early on, even though she was already suffering in their marriage. Majority of the royal fans said that it may have been because of her two sons, Prince William and Prince Harry.

Sallie Smythe, an avid reader of royal biographies, said that Princess Diana saw how her sons struggled after she separated from their father. This is why she knew that getting a divorce from the future King would be much worse for them.

Smythe also said that Princess Diana really loved Prince Charles, and she would’ve also wanted to have a third child with him. And since she was married to the future King, she was also poised to become the future Queen. A divorce wouldn’t make this possible.

Tami Daniel, a history graduate from the Washington University, said that Princess Diana might not have wanted to divorce Prince Charles because she wants to continue her royal duties. After their divorce, the Princess of Wales still continued her work but no longer a member of the royal family.

“I think the prospect of divorce was frightening for her – could she continue with her work on issues important to her? But she faced it and became even stronger… I always assumed the Queen ordered that the marriage be legally dissolved,” the royal fan said.

Prince Charles and Princess Diana tied the knot on 1981. One year later, they welcomed their eldest son, Prince William. In 1984, the royal couple welcomed their son child, Prince Harry. But 11 years after they tied the knot, Prince Charles and Princess Diana announced their separation to the public. In 1996, their divorce was finalized. Princess Diana passed away one year later.

Prince Charles and Princess Diana Prince Charles worked with several royal servants to cover up his affair with Camilla Parker Bowles from Princess Diana. Pictured: Princess Diana and Prince Charles attend a welcome ceremony in Toronto at the beginning of their Canadian tour on Oct. 1, 1991. Photo: Getty Images/Jayne Fincher