The earliest moment in wizarding history i can find is the Soap Blizzard of 1378 which would indicate that wizarding society had existed at that time and also Bathilda Bagshot's mentions in her book "A History of Magic" comments about wizards resisting burnings using the Flame-Freezing Charm.
that being said, during the Hundred Years' War which occurred between 1337 to 1453, Joan of Arc was captured and brought from France to England in 1430 (52 Years after the Soap Blizzard) to be trialed then burned at the state for being a witch.
I am wondering if there is any material in Harry Potter Universe which mentions her, if she was really was a witch and if so, like other witches/wizards escaped with magic or not, or if she was actually Wendelin the Weird in one of her many disguises?
NOTE: my only thought that there might be a reference is that Hermione used her summer vacation to France with her parents to research the local history of witch burnings, and i'm assuming that Hermione did find something on Joan having been born in France and being burned as a witch