 Because of the rearrangement of Germany by Napoleon as a consequence of the German mediatization it became württembergian.In the 19. century Deizisau was on the one hand spared from war destruction but instead, it suffered from severe famine.Only for a short time after the end of the Coalition Wars a worldwide climate disaster happened following the eruption of a volcano in Indonesia in 1816, the so-called Year Without a Summer.