Three become one: The state in southwestern Germany is the only one created by a referendum. In 1952, the states of Württemberg-Baden, Baden and Württemberg-Hohenzollern merged.

The water level of Lake Constance, Germany's largest, is almost at the lowest it has been for 30 years, according to water measurement authorities in the southern state of Baden-Württemberg.

The aristocrat, who was the nephew of Prince Philip through his sister, Theodora of Greece and Denmark, died aged 89 at Schloss Salem near Lake Constance in Germany.