In the Middle Ages divided the society in different classes. In these time ascents some of the Elztal peoples into the 1st society class. One of them was Herr von Heinriet (1336 AD) who owned the Festivals of Dallau and a lot of land. After any years the Herr von Heinriet impoverished and developed to robber barons. In the extermination campaign 1356 AD of the Mainzer Archbishop Gerlach von Nassau against Albrecht Schenk von Limpurg in Lohrbach was the water castle (Wasserschloß) of Dallau in order of Karl IV conquered. In this campaign Dallau was devastated and its settlers and peoples murdered by the order from Karl IV. Gerlach von Nassau got the rights to reestablishment of a new city on the Dallau territory. But he never realized this right. After the Death of Gerlach in 1371 AD, the Herr von Heinriets owned now the Possessions of the Elztal villages again. These were sold to Cunz Münch von Rosenberg in 1380 AD. During this sale was Muckental in its first time mentioned. In the 14th and early 15th century was the Elztal owned by Herren von Weinsberg, Herren von Hirschhorn and Albrecht Schenk von Limpurg.