
In 2008, a pile of old junk was found under floorboards in an Austrian castle. VERY old junk - from the 1400s. It included several pieces of linen, which unlike wool or silk, usually decays quickly.
More specifically they found women's underwear, which is virtually never mentioned in surviving medieval texts. The discovery pushed back the invention of the bra by *several hundred years*. It's very modern looking.
The US patent for bras only goes back to 1914. At the earliest something like modern bras were thought to be worn in France in the late 1700s.
https://newsonhistory.blogspot.com/2013/06/discovery-of-600-year-old-lingerie_30.html