Wolfpacks U-523 was part of
U-523 operated with the following Wolfpacks during its career:
Burggraf (24 Feb 1943 - 5 Mar 1943)
Westmark (6 Mar 1943 - 11 Mar 1943)
Stürmer (11 Mar 1943 - 20 Mar 1943)
Seeteufel (23 Mar 1943 - 30 Mar 1943)