As noted elsewhere, many meteorite enthusiasts believe the Ensisheim fall of 1492 is the oldest fall for which material still exists. It isn’t.
Elbogen fell in the Zapadocesky region of what is now the Czech Republic in 1400. Around 107kg of material was recovered, and although some has been lost, much remains in institutions around the world. 80kg is at the Natural History Museum in Vienna. Very little exists in private hands.
It’s a beautiful IID iron meteorite. Here are a few shots of my 1.8g part slice from Mirko Graul.