Holocaust victims
After World War II, many homosexuals who were liberated from the concentration camps were still persecuted in Germany. They could be charged under Paragraph 175, a law which made "lewdness between men" illegal.  If they were convicted, they would be sent to prison.  (The time they spent in the concentration camps would be subtracted from their sentences.)  This was very different from how other Holocaust victims were treated.  Other victims were compensated (given money) for the loss of family members and educational opportunities.  Gay victims were treated like criminals.