[1] In 1938 he was appointed acting head of the Central Legal Department in the Berlin Gau (Administrative Region).
This position was formerly confirmed in January 1944 by Reichsminister Joseph Goebbels, acting in his capacity as Gauleiter of Berlin.
Wagner carried out duties in that area from January 1943 to February 1944[3] and was based in Posen, the capital, where he not only met the local Governor, Arthur Greiser, but his future wife, Cordula Kroepels, an NSV (National Socialist People's Welfare) social worker who was also involved in the re-settlement programme.
Wagner also held a position with the local Pankow council as administrator of their refuse collection services.
In October 1944 Cordula, who was heavily pregnant, left Berlin to live with her mother at Wyk auf Fohr (the second largest of the North Frisian Islands) where their son Michael was born on 1 November.
[5] In late April Hitler decided to marry Eva Braun and subsequently directed Goebbels to find a registrar who could carry out the ceremony.
On 28 April Goebbels ordered the Waffen SS to locate Wagner (who he knew possessed the required qualifications) and bring him to the Führerbunker.
The Waffen SS despatched a unit in an armoured personnel carrier to Wagner's home, only to find that he was fighting in the Friedrichstrasse area.
Wagner's friend, colleague and company commander, Erich Illing, was severely wounded by Russian tank fire.