Identification of Aircraft, Weimar, Germany, May, 1945.
Here is one of the better photos:
According to the page I linked above:
The DFS 230 was a Luftwaffe assault glider, developed by the Deutsche Forschungsanstalt für Segelflug (German Research Institute for Sailplane Flight). Hans Jacobs was the lead designer.
It was intended for paratrooper assault operations, carrying ten soldiers with equipment or a payload of about 1,200 kg. The usual tug was a JU-52 but photos exist showing tugs as varied as Ju-87 and Ju-88's.
DFS-230 gliders were used famously and successfully in the assaults at Eben-Emael and in the rescue at Gran Sasso of Benito Mussolini.