Der Adler (The Eagle) was a British-built, German steam locomotive with the wheel arrangement 2-2-2 (Whyte notation) or 1A1 (UIC classification) and was the first locomotive to run successfully in Germany. It was built to order in 1835 by the British railway pioneers George and Robert Stephenson and delivered to the Bavarian Ludwigsbahn (Bayerische Ludwigsbahn) which ran between Nuremberg and Fürth. It ran for the first time there on 7 December 1835. The Adler was furnished with a tender of the type 2 T 2.