A 17th-century vintage silk dress belonging to an English noblewoman from the royal court of a queen has been found buried in the soil of a Dutch Island.

The silk gown is believed to be of Jean Kerr, Countess of Roxburghe and lady-in-waiting to the English queen, Henrietta Maria.

According to Fox News, the queen was harbouring on a secret mission in March 1642 in the Wadden Sea, during which one of her baggage ships sank. She was with a royal fleet of 12 ships and was on the trip to deliver her 11-year-old daughter to the court of William II, Prince of Orange.

The secret voyage was to sell the crown Jewels and earn money for weapons for King Charles I for English Civil War.

“While 17th-century paintings give historians a good idea of how nobles dressed when they wanted to look their best, evidence of their everyday lives is much rarer,” reports Newser. “Thanks to this discovery, historians have a better sense of how upper-class ladies dressed as they went about their days, as opposed to the embroidered, elaborate finery they would have donned to pose for a portrait.”

The gown along with other artefacts was found by marine archeologists in August 2014. The officials at the Kaap Skil Museum in Holland, kept the discovery secret just to protect it from interlopers.

According to Gizmodo, the dress, made from silk damask, has loose-fitting sleeves and sleeve caps. It has an open frock attached at the front. As it does not have silver and golden fancy boundaries, it was meant for daily use.

A leather-bound book was also unveiled with the bundle of British house of Stuart’s coat of arms. The bundle had a jacket, silk knee socks, and silk bodices woven with gold and silver thread.

Presently, the gown with other artefacts is on display in a one-month exhibition at the museum. All of them will be returned to archeologists for further study after May 16.