Prince Charles and Camilla
Prince Charles donated money to a restaurant where he and Camilla Parker Bowles had dined after it was destroyed by fire. Pictured: Camilla and Prince Charles in the White Drawing Room at Windsor Castle after their wedding ceremony, April 9, 2005 in Windsor, England. Getty Images/Hugo Burnand

Prince Charles once helped a Polish restaurant get back on its feet after it was destroyed by a fire.

In 2010, the Prince of Wales and Duchess of Cornwall ate a traditional Tatar meal during their official nine-day royal tour in Poland. During the visit, Polish Muslim Dzenneta Bogdanowics spoke to the royals about her culture and even cooked for them.

Bogdanowics owned a wooden restaurant called Tatat Yurt, which was later completely destroyed after a fire. Everything was lost, including the photograph given to her by the future king. However, after the tragic accident, she received a letter from Prince Charles offering an undisclosed sum of money to help her rebuild.

"The donation was a very kind expression of solidarity," Boganowics said (as quoted by Express).

"It’s not a lot of money for him, but it’s a great support for the restaurant," she continued. "It was very kind and personal, it’s amazing how the royal family can express such nice things to a small restaurant in Poland."

Bogdanowics was so grateful to the heir that she invited him to the opening of the renovated restaurant. However, she has yet to receive a response from him. She opened Tatar Yurt 17 years ago in the small village of Kruszyniany in north-eastern Poland.

In related news, in a never-before-read letter, Prince Charles admitted that he was doubtful about his proposal to Princess Diana. The Prince of Wales knew that he was still in love with Camilla, but the royals didn't approve of her for him.

"I’m terrified sometimes of making a promise and then perhaps living to regret it," Prince Charles wrote in a letter unearthed on Netflix's "Royal House of Windsor" documentary.

The shocking admission came just a month before they announced their royal engagement. During their engagement interview, Prince Charles said that he was "delighted and frankly amazed that Diana is prepared to take me on."

However, according to body language expert Dr. Peter Collett, from the time they announced their engagement, Prince Charles was already showing signs all was not well in his relationship with Princess Diana. The expert insisted that the exes were not in step and he was not adapting to his behavior to include the late Princess of Wales.

"In fact, if we apply the cut-out principle, and remove Diana from the scene, it does not look like anyone is missing," Collett said.