Apologies but I don't know who Leonard Da Vince is. Do they have a profile on WikiTree? This Leonardo, though, is on WikiTree and with ... this tool ... you can figure out how Vinci-33 is related to other folks with profiles on WikiTree such as Briggs-6903.
Leonard Da Vince is another way of saying Leonardo Da Vinci.
Leonardo and James are Unrelated right now. Leonardo is unconnected, so if you can help, that would be great.