Meghan Markle has endeared herself to her new father-in-law, future king of England Prince Charles, so much, that Charles has given her the most unusual (but still flattering!) of nicknames.

According to the Daily Mail, Markle is called Tungsten, a type of metal, by Charles because she, like Tungsten, is "tough and unbending."

"Prince Charles admires Meghan for her strength and the backbone she gives Harry, who needs a tungsten-type figure in his life as he can be a bit of a softy," a source told the Mail On Sunday's Charlotte Griffiths. "It's become a term of endearment."

The Daily Mail previously reported that Meghan also helped repair Charles and Harry's relationship. "Meghan met Charles and was bowled over by his charm," a family source told Daily Mail. "She told Harry he was wonderful: welcoming, warm, hard-working kind and stable. She made it clear that he should appreciate him and bond more."

And Charles was super impressed by Tungsten. He told friends, "She is so intelligent and so nice. She makes Harry happy. We could not like her more," a source said.

This content is imported from {embed-name}. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Alyssa Bailey News and Strategy Editor Alyssa Bailey is the news and strategy editor at ELLE.com, where she oversees coverage of celebrities and royals (particularly Meghan Markle and Kate Middleton).

This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. You may be able to find more information about this and similar content at piano.io