All along the Loire are some interesting small villages that have maintained many of their medieval buildings. The castle keep catches your eye as soon as you approach the village of Trèves. It is nearly 50 meters tall and was part of an important castle, which dates back to the 11th century and was rebuilt in the mid-fifteenth century by Robert Lemacon, lord of Trier and Chancellor of Charles VII, King of France. Its shape is the result of the joining of a round tower and a square tower. Sadly, the rest of the castle no longer exists. The tower can be seen clearly from the cemetery of the Eglise Saint-Aubin which dates from the 11th century.