Take the following as truth: The winding wine route is well signposted; its charming medieval and 16th-century villages and castles ' such as Haut-Koenigsbourg and Kaysersberg ' make it the prettiest vineyard tour in the country, best of all during the October wine harvest.
Then the following statement: "The wine route has castles from the 15th-century." is true, false, or inconclusive?