A little digging and the Jenin memorial for German pilots shows a Private Wrede killed on the 13th of October October 1917 at a place called Al Tina.

http://desert-column.phpbb3now.com/viewtopic.php?p=5021#p5021

http://www.frontflieger.de/3-w-f.html

Anyone know what aircraft Fl.Abt 303 flew or details on the loss of Gefreiter Wrede ?